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Finding the Fourth Proportional to 127,410.96, 175,812.84 and 76,425.78

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Solution

The fourth proportional to 127,410.96, 175,812.84 and 76,425.78 is: 105,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,410.96 : 175,812.84 = 76,425.78 : x
  2. Step 2: Convert to fraction form
    127,410.96/175,812.84 = 76,425.78/x
  3. Step 3: Cross multiply
    127,410.96x = 175,812.84 × 76,425.78
  4. Step 4: Simplify right side
    127,410.96x = 13,436,633,431.02
  5. Step 5: Solve for x
    x = 13,436,633,431.02/127,410.96
  6. Step 6: Final answer
    x = 105,459.01

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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.