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Finding the Fourth Proportional to 118,410, 177,702.68 and 56,080.68

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Solution

The fourth proportional to 118,410, 177,702.68 and 56,080.68 is: 84,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,410 : 177,702.68 = 56,080.68 : x
  2. Step 2: Convert to fraction form
    118,410/177,702.68 = 56,080.68/x
  3. Step 3: Cross multiply
    118,410x = 177,702.68 × 56,080.68
  4. Step 4: Simplify right side
    118,410x = 9,965,687,132.22
  5. Step 5: Solve for x
    x = 9,965,687,132.22/118,410
  6. Step 6: Final answer
    x = 84,162.55

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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.