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Finding the Fourth Proportional to 186,681.28, 257,614.56 and 101,800

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Solution

The fourth proportional to 186,681.28, 257,614.56 and 101,800 is: 140,480.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,681.28 : 257,614.56 = 101,800 : x
  2. Step 2: Convert to fraction form
    186,681.28/257,614.56 = 101,800/x
  3. Step 3: Cross multiply
    186,681.28x = 257,614.56 × 101,800
  4. Step 4: Simplify right side
    186,681.28x = 26,225,162,208
  5. Step 5: Solve for x
    x = 26,225,162,208/186,681.28
  6. Step 6: Final answer
    x = 140,480.94

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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.