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Finding the Fourth Proportional to 186,587.76, 257,489.49 and 101,703

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Solution

The fourth proportional to 186,587.76, 257,489.49 and 101,703 is: 140,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,587.76 : 257,489.49 = 101,703 : x
  2. Step 2: Convert to fraction form
    186,587.76/257,489.49 = 101,703/x
  3. Step 3: Cross multiply
    186,587.76x = 257,489.49 × 101,703
  4. Step 4: Simplify right side
    186,587.76x = 26,187,453,601.47
  5. Step 5: Solve for x
    x = 26,187,453,601.47/186,587.76
  6. Step 6: Final answer
    x = 140,349.26

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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.