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Finding the Fourth Proportional to 117,521.52, 176,086.13 and 113,148.20

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Solution

The fourth proportional to 117,521.52, 176,086.13 and 113,148.20 is: 169,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,521.52 : 176,086.13 = 113,148.20 : x
  2. Step 2: Convert to fraction form
    117,521.52/176,086.13 = 113,148.20/x
  3. Step 3: Cross multiply
    117,521.52x = 176,086.13 × 113,148.20
  4. Step 4: Simplify right side
    117,521.52x = 19,923,829,810.81
  5. Step 5: Solve for x
    x = 19,923,829,810.81/117,521.52
  6. Step 6: Final answer
    x = 169,533.46

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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.