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Finding the Fourth Proportional to 134,070.93, 185,019.39 and 73,642.97

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Solution

The fourth proportional to 134,070.93, 185,019.39 and 73,642.97 is: 101,628.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,070.93 : 185,019.39 = 73,642.97 : x
  2. Step 2: Convert to fraction form
    134,070.93/185,019.39 = 73,642.97/x
  3. Step 3: Cross multiply
    134,070.93x = 185,019.39 × 73,642.97
  4. Step 4: Simplify right side
    134,070.93x = 13,625,377,849.74
  5. Step 5: Solve for x
    x = 13,625,377,849.74/134,070.93
  6. Step 6: Final answer
    x = 101,628.13

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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.