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Finding the Fourth Proportional to 186,595.78, 257,500.20 and 101,711.02

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Solution

The fourth proportional to 186,595.78, 257,500.20 and 101,711.02 is: 140,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,595.78 : 257,500.20 = 101,711.02 : x
  2. Step 2: Convert to fraction form
    186,595.78/257,500.20 = 101,711.02/x
  3. Step 3: Cross multiply
    186,595.78x = 257,500.20 × 101,711.02
  4. Step 4: Simplify right side
    186,595.78x = 26,190,607,992.20
  5. Step 5: Solve for x
    x = 26,190,607,992.20/186,595.78
  6. Step 6: Final answer
    x = 140,360.13

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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.