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Finding the Fourth Proportional to 117,641.52, 176,462.10 and 28,895.40

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Solution

The fourth proportional to 117,641.52, 176,462.10 and 28,895.40 is: 43,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,641.52 : 176,462.10 = 28,895.40 : x
  2. Step 2: Convert to fraction form
    117,641.52/176,462.10 = 28,895.40/x
  3. Step 3: Cross multiply
    117,641.52x = 176,462.10 × 28,895.40
  4. Step 4: Simplify right side
    117,641.52x = 5,098,942,964.34
  5. Step 5: Solve for x
    x = 5,098,942,964.34/117,641.52
  6. Step 6: Final answer
    x = 43,343.06

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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.