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Finding the Fourth Proportional to 359,101.15, 538,730.39 and 106,401.47

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Solution

The fourth proportional to 359,101.15, 538,730.39 and 106,401.47 is: 159,625.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,101.15 : 538,730.39 = 106,401.47 : x
  2. Step 2: Convert to fraction form
    359,101.15/538,730.39 = 106,401.47/x
  3. Step 3: Cross multiply
    359,101.15x = 538,730.39 × 106,401.47
  4. Step 4: Simplify right side
    359,101.15x = 57,321,703,002.03
  5. Step 5: Solve for x
    x = 57,321,703,002.03/359,101.15
  6. Step 6: Final answer
    x = 159,625.51

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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.