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Finding the Fourth Proportional to 117,646.52, 162,353.19 and 63,931.58

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Solution

The fourth proportional to 117,646.52, 162,353.19 and 63,931.58 is: 88,226.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,646.52 : 162,353.19 = 63,931.58 : x
  2. Step 2: Convert to fraction form
    117,646.52/162,353.19 = 63,931.58/x
  3. Step 3: Cross multiply
    117,646.52x = 162,353.19 × 63,931.58
  4. Step 4: Simplify right side
    117,646.52x = 10,379,495,954.74
  5. Step 5: Solve for x
    x = 10,379,495,954.74/117,646.52
  6. Step 6: Final answer
    x = 88,226.12

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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.