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Finding the Fourth Proportional to 186,898.60, 257,926.18 and 102,020.20

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Solution

The fourth proportional to 186,898.60, 257,926.18 and 102,020.20 is: 140,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,898.60 : 257,926.18 = 102,020.20 : x
  2. Step 2: Convert to fraction form
    186,898.60/257,926.18 = 102,020.20/x
  3. Step 3: Cross multiply
    186,898.60x = 257,926.18 × 102,020.20
  4. Step 4: Simplify right side
    186,898.60x = 26,313,680,468.84
  5. Step 5: Solve for x
    x = 26,313,680,468.84/186,898.60
  6. Step 6: Final answer
    x = 140,791.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.