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Finding the Fourth Proportional to 127,503.46, 175,834.01 and 81,577.64

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Solution

The fourth proportional to 127,503.46, 175,834.01 and 81,577.64 is: 112,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,503.46 : 175,834.01 = 81,577.64 : x
  2. Step 2: Convert to fraction form
    127,503.46/175,834.01 = 81,577.64/x
  3. Step 3: Cross multiply
    127,503.46x = 175,834.01 × 81,577.64
  4. Step 4: Simplify right side
    127,503.46x = 14,344,122,873.39
  5. Step 5: Solve for x
    x = 14,344,122,873.39/127,503.46
  6. Step 6: Final answer
    x = 112,499.87

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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.