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Finding the Fourth Proportional to 104,366.72, 143,931.03 and 88,267.76

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Solution

The fourth proportional to 104,366.72, 143,931.03 and 88,267.76 is: 121,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,366.72 : 143,931.03 = 88,267.76 : x
  2. Step 2: Convert to fraction form
    104,366.72/143,931.03 = 88,267.76/x
  3. Step 3: Cross multiply
    104,366.72x = 143,931.03 × 88,267.76
  4. Step 4: Simplify right side
    104,366.72x = 12,704,469,612.59
  5. Step 5: Solve for x
    x = 12,704,469,612.59/104,366.72
  6. Step 6: Final answer
    x = 121,729.13

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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.