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Finding the Fourth Proportional to 117,607.36, 176,439.84 and 58,470.88

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Solution

The fourth proportional to 117,607.36, 176,439.84 and 58,470.88 is: 87,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,607.36 : 176,439.84 = 58,470.88 : x
  2. Step 2: Convert to fraction form
    117,607.36/176,439.84 = 58,470.88/x
  3. Step 3: Cross multiply
    117,607.36x = 176,439.84 × 58,470.88
  4. Step 4: Simplify right side
    117,607.36x = 10,316,592,711.86
  5. Step 5: Solve for x
    x = 10,316,592,711.86/117,607.36
  6. Step 6: Final answer
    x = 87,720.64

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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.