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Finding the Fourth Proportional to 86,434.70, 119,200.61 and 59,250.29

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Solution

The fourth proportional to 86,434.70, 119,200.61 and 59,250.29 is: 81,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,434.70 : 119,200.61 = 59,250.29 : x
  2. Step 2: Convert to fraction form
    86,434.70/119,200.61 = 59,250.29/x
  3. Step 3: Cross multiply
    86,434.70x = 119,200.61 × 59,250.29
  4. Step 4: Simplify right side
    86,434.70x = 7,062,669,818.42
  5. Step 5: Solve for x
    x = 7,062,669,818.42/86,434.70
  6. Step 6: Final answer
    x = 81,711.05

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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.