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Finding the Fourth Proportional to 116,878.80, 175,318.20 and 42,034.80

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Solution

The fourth proportional to 116,878.80, 175,318.20 and 42,034.80 is: 63,052.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,878.80 : 175,318.20 = 42,034.80 : x
  2. Step 2: Convert to fraction form
    116,878.80/175,318.20 = 42,034.80/x
  3. Step 3: Cross multiply
    116,878.80x = 175,318.20 × 42,034.80
  4. Step 4: Simplify right side
    116,878.80x = 7,369,465,473.36
  5. Step 5: Solve for x
    x = 7,369,465,473.36/116,878.80
  6. Step 6: Final answer
    x = 63,052.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.