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Finding the Fourth Proportional to 118,339.88, 163,302.92 and 64,614.52

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Solution

The fourth proportional to 118,339.88, 163,302.92 and 64,614.52 is: 89,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.88 : 163,302.92 = 64,614.52 : x
  2. Step 2: Convert to fraction form
    118,339.88/163,302.92 = 64,614.52/x
  3. Step 3: Cross multiply
    118,339.88x = 163,302.92 × 64,614.52
  4. Step 4: Simplify right side
    118,339.88x = 10,551,739,790.40
  5. Step 5: Solve for x
    x = 10,551,739,790.40/118,339.88
  6. Step 6: Final answer
    x = 89,164.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.