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Finding the Fourth Proportional to 131,495.52, 181,463.84 and 71,065.96

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Solution

The fourth proportional to 131,495.52, 181,463.84 and 71,065.96 is: 98,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,495.52 : 181,463.84 = 71,065.96 : x
  2. Step 2: Convert to fraction form
    131,495.52/181,463.84 = 71,065.96/x
  3. Step 3: Cross multiply
    131,495.52x = 181,463.84 × 71,065.96
  4. Step 4: Simplify right side
    131,495.52x = 12,895,901,994.89
  5. Step 5: Solve for x
    x = 12,895,901,994.89/131,495.52
  6. Step 6: Final answer
    x = 98,071.04

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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.