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Finding the Fourth Proportional to 117,158.92, 175,702.06 and 42,269.35

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Solution

The fourth proportional to 117,158.92, 175,702.06 and 42,269.35 is: 63,390.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,158.92 : 175,702.06 = 42,269.35 : x
  2. Step 2: Convert to fraction form
    117,158.92/175,702.06 = 42,269.35/x
  3. Step 3: Cross multiply
    117,158.92x = 175,702.06 × 42,269.35
  4. Step 4: Simplify right side
    117,158.92x = 7,426,811,869.86
  5. Step 5: Solve for x
    x = 7,426,811,869.86/117,158.92
  6. Step 6: Final answer
    x = 63,390.92

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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.