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Finding the Fourth Proportional to 109,780.66, 151,497.48 and 59,479.66

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Solution

The fourth proportional to 109,780.66, 151,497.48 and 59,479.66 is: 82,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,780.66 : 151,497.48 = 59,479.66 : x
  2. Step 2: Convert to fraction form
    109,780.66/151,497.48 = 59,479.66/x
  3. Step 3: Cross multiply
    109,780.66x = 151,497.48 × 59,479.66
  4. Step 4: Simplify right side
    109,780.66x = 9,011,018,601.26
  5. Step 5: Solve for x
    x = 9,011,018,601.26/109,780.66
  6. Step 6: Final answer
    x = 82,082.02

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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.