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Finding the Fourth Proportional to 91,873.62, 126,799.36 and 56,084.38

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Solution

The fourth proportional to 91,873.62, 126,799.36 and 56,084.38 is: 77,404.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,873.62 : 126,799.36 = 56,084.38 : x
  2. Step 2: Convert to fraction form
    91,873.62/126,799.36 = 56,084.38/x
  3. Step 3: Cross multiply
    91,873.62x = 126,799.36 × 56,084.38
  4. Step 4: Simplify right side
    91,873.62x = 7,111,463,490.00
  5. Step 5: Solve for x
    x = 7,111,463,490.00/91,873.62
  6. Step 6: Final answer
    x = 77,404.85

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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.