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Finding the Fourth Proportional to 77,330.70, 106,767.78 and 59,393.64

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Solution

The fourth proportional to 77,330.70, 106,767.78 and 59,393.64 is: 82,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,330.70 : 106,767.78 = 59,393.64 : x
  2. Step 2: Convert to fraction form
    77,330.70/106,767.78 = 59,393.64/x
  3. Step 3: Cross multiply
    77,330.70x = 106,767.78 × 59,393.64
  4. Step 4: Simplify right side
    77,330.70x = 6,341,327,088.92
  5. Step 5: Solve for x
    x = 6,341,327,088.92/77,330.70
  6. Step 6: Final answer
    x = 82,002.71

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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.