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Finding the Fourth Proportional to 134,468.98, 185,565.66 and 74,038.39

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Solution

The fourth proportional to 134,468.98, 185,565.66 and 74,038.39 is: 102,172.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,468.98 : 185,565.66 = 74,038.39 : x
  2. Step 2: Convert to fraction form
    134,468.98/185,565.66 = 74,038.39/x
  3. Step 3: Cross multiply
    134,468.98x = 185,565.66 × 74,038.39
  4. Step 4: Simplify right side
    134,468.98x = 13,738,982,705.69
  5. Step 5: Solve for x
    x = 13,738,982,705.69/134,468.98
  6. Step 6: Final answer
    x = 102,172.13

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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.