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Finding the Fourth Proportional to 200,302,695.60, 300,454,043.40 and 148,646,630.40

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Solution

The fourth proportional to 200,302,695.60, 300,454,043.40 and 148,646,630.40 is: 222,969,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,302,695.60 : 300,454,043.40 = 148,646,630.40 : x
  2. Step 2: Convert to fraction form
    200,302,695.60/300,454,043.40 = 148,646,630.40/x
  3. Step 3: Cross multiply
    200,302,695.60x = 300,454,043.40 × 148,646,630.40
  4. Step 4: Simplify right side
    200,302,695.60x = 44,661,481,141,465,360
  5. Step 5: Solve for x
    x = 44,661,481,141,465,360/200,302,695.60
  6. Step 6: Final answer
    x = 222,969,945.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.