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Finding the Fourth Proportional to 359,848.40, 539,513.40 and 202,125.20

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Solution

The fourth proportional to 359,848.40, 539,513.40 and 202,125.20 is: 303,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,848.40 : 539,513.40 = 202,125.20 : x
  2. Step 2: Convert to fraction form
    359,848.40/539,513.40 = 202,125.20/x
  3. Step 3: Cross multiply
    359,848.40x = 539,513.40 × 202,125.20
  4. Step 4: Simplify right side
    359,848.40x = 109,049,253,877.68
  5. Step 5: Solve for x
    x = 109,049,253,877.68/359,848.40
  6. Step 6: Final answer
    x = 303,042.21

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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.