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Finding the Fourth Proportional to 91,732.86, 126,605.18 and 55,943.62

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Solution

The fourth proportional to 91,732.86, 126,605.18 and 55,943.62 is: 77,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.86 : 126,605.18 = 55,943.62 : x
  2. Step 2: Convert to fraction form
    91,732.86/126,605.18 = 55,943.62/x
  3. Step 3: Cross multiply
    91,732.86x = 126,605.18 × 55,943.62
  4. Step 4: Simplify right side
    91,732.86x = 7,082,752,079.95
  5. Step 5: Solve for x
    x = 7,082,752,079.95/91,732.86
  6. Step 6: Final answer
    x = 77,210.63

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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.