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Finding the Fourth Proportional to 186,957.60, 280,436.40 and 163,629.60

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Solution

The fourth proportional to 186,957.60, 280,436.40 and 163,629.60 is: 245,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,957.60 : 280,436.40 = 163,629.60 : x
  2. Step 2: Convert to fraction form
    186,957.60/280,436.40 = 163,629.60/x
  3. Step 3: Cross multiply
    186,957.60x = 280,436.40 × 163,629.60
  4. Step 4: Simplify right side
    186,957.60x = 45,887,695,957.44
  5. Step 5: Solve for x
    x = 45,887,695,957.44/186,957.60
  6. Step 6: Final answer
    x = 245,444.40

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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.