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Finding the Fourth Proportional to 359,138.09, 538,707.14 and 122,482.82

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Solution

The fourth proportional to 359,138.09, 538,707.14 and 122,482.82 is: 183,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,138.09 : 538,707.14 = 122,482.82 : x
  2. Step 2: Convert to fraction form
    359,138.09/538,707.14 = 122,482.82/x
  3. Step 3: Cross multiply
    359,138.09x = 538,707.14 × 122,482.82
  4. Step 4: Simplify right side
    359,138.09x = 65,982,366,355.39
  5. Step 5: Solve for x
    x = 65,982,366,355.39/359,138.09
  6. Step 6: Final answer
    x = 183,724.23

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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.