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Finding the Fourth Proportional to 186,557.54, 257,441.91 and 101,672.78

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Solution

The fourth proportional to 186,557.54, 257,441.91 and 101,672.78 is: 140,304.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,557.54 : 257,441.91 = 101,672.78 : x
  2. Step 2: Convert to fraction form
    186,557.54/257,441.91 = 101,672.78/x
  3. Step 3: Cross multiply
    186,557.54x = 257,441.91 × 101,672.78
  4. Step 4: Simplify right side
    186,557.54x = 26,174,834,678.21
  5. Step 5: Solve for x
    x = 26,174,834,678.21/186,557.54
  6. Step 6: Final answer
    x = 140,304.35

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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.