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Finding the Fourth Proportional to 153,866.40, 230,799.60 and 70,922.40

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Solution

The fourth proportional to 153,866.40, 230,799.60 and 70,922.40 is: 106,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,866.40 : 230,799.60 = 70,922.40 : x
  2. Step 2: Convert to fraction form
    153,866.40/230,799.60 = 70,922.40/x
  3. Step 3: Cross multiply
    153,866.40x = 230,799.60 × 70,922.40
  4. Step 4: Simplify right side
    153,866.40x = 16,368,861,551.04
  5. Step 5: Solve for x
    x = 16,368,861,551.04/153,866.40
  6. Step 6: Final answer
    x = 106,383.60

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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.