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Finding the Fourth Proportional to 99,493.86, 137,294.58 and 56,474.22

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Solution

The fourth proportional to 99,493.86, 137,294.58 and 56,474.22 is: 77,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.86 : 137,294.58 = 56,474.22 : x
  2. Step 2: Convert to fraction form
    99,493.86/137,294.58 = 56,474.22/x
  3. Step 3: Cross multiply
    99,493.86x = 137,294.58 × 56,474.22
  4. Step 4: Simplify right side
    99,493.86x = 7,753,604,315.73
  5. Step 5: Solve for x
    x = 7,753,604,315.73/99,493.86
  6. Step 6: Final answer
    x = 77,930.48

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1.5x scale

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.