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Finding the Fourth Proportional to 487,461.16, 730,982.58 and 167,645.20

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Solution

The fourth proportional to 487,461.16, 730,982.58 and 167,645.20 is: 251,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,461.16 : 730,982.58 = 167,645.20 : x
  2. Step 2: Convert to fraction form
    487,461.16/730,982.58 = 167,645.20/x
  3. Step 3: Cross multiply
    487,461.16x = 730,982.58 × 167,645.20
  4. Step 4: Simplify right side
    487,461.16x = 122,545,720,820.62
  5. Step 5: Solve for x
    x = 122,545,720,820.62/487,461.16
  6. Step 6: Final answer
    x = 251,395.87

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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.