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Finding the Fourth Proportional to 137,151.80, 205,653.72 and 62,231.08

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Solution

The fourth proportional to 137,151.80, 205,653.72 and 62,231.08 is: 93,313.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,151.80 : 205,653.72 = 62,231.08 : x
  2. Step 2: Convert to fraction form
    137,151.80/205,653.72 = 62,231.08/x
  3. Step 3: Cross multiply
    137,151.80x = 205,653.72 × 62,231.08
  4. Step 4: Simplify right side
    137,151.80x = 12,798,053,101.62
  5. Step 5: Solve for x
    x = 12,798,053,101.62/137,151.80
  6. Step 6: Final answer
    x = 93,313.05

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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.