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Finding the Fourth Proportional to 101,577.60, 152,366.40 and 84,956.40

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Solution

The fourth proportional to 101,577.60, 152,366.40 and 84,956.40 is: 127,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,577.60 : 152,366.40 = 84,956.40 : x
  2. Step 2: Convert to fraction form
    101,577.60/152,366.40 = 84,956.40/x
  3. Step 3: Cross multiply
    101,577.60x = 152,366.40 × 84,956.40
  4. Step 4: Simplify right side
    101,577.60x = 12,944,500,824.96
  5. Step 5: Solve for x
    x = 12,944,500,824.96/101,577.60
  6. Step 6: Final answer
    x = 127,434.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.