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Finding the Fourth Proportional to 77,546.57, 107,119.87 and 60,763.16

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Solution

The fourth proportional to 77,546.57, 107,119.87 and 60,763.16 is: 83,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,546.57 : 107,119.87 = 60,763.16 : x
  2. Step 2: Convert to fraction form
    77,546.57/107,119.87 = 60,763.16/x
  3. Step 3: Cross multiply
    77,546.57x = 107,119.87 × 60,763.16
  4. Step 4: Simplify right side
    77,546.57x = 6,508,941,915.88
  5. Step 5: Solve for x
    x = 6,508,941,915.88/77,546.57
  6. Step 6: Final answer
    x = 83,935.92

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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.