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Finding the Fourth Proportional to 117,585.60, 176,205.60 and 47,342.40

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Solution

The fourth proportional to 117,585.60, 176,205.60 and 47,342.40 is: 70,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,585.60 : 176,205.60 = 47,342.40 : x
  2. Step 2: Convert to fraction form
    117,585.60/176,205.60 = 47,342.40/x
  3. Step 3: Cross multiply
    117,585.60x = 176,205.60 × 47,342.40
  4. Step 4: Simplify right side
    117,585.60x = 8,341,995,997.44
  5. Step 5: Solve for x
    x = 8,341,995,997.44/117,585.60
  6. Step 6: Final answer
    x = 70,944.03

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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.