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Finding the Fourth Proportional to 416,671.72, 625,044.50 and 117,154.91

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Solution

The fourth proportional to 416,671.72, 625,044.50 and 117,154.91 is: 175,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,671.72 : 625,044.50 = 117,154.91 : x
  2. Step 2: Convert to fraction form
    416,671.72/625,044.50 = 117,154.91/x
  3. Step 3: Cross multiply
    416,671.72x = 625,044.50 × 117,154.91
  4. Step 4: Simplify right side
    416,671.72x = 73,227,032,143.50
  5. Step 5: Solve for x
    x = 73,227,032,143.50/416,671.72
  6. Step 6: Final answer
    x = 175,742.75

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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.