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Finding the Fourth Proportional to 359,840.90, 539,502.15 and 202,117.70

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Solution

The fourth proportional to 359,840.90, 539,502.15 and 202,117.70 is: 303,030.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,840.90 : 539,502.15 = 202,117.70 : x
  2. Step 2: Convert to fraction form
    359,840.90/539,502.15 = 202,117.70/x
  3. Step 3: Cross multiply
    359,840.90x = 539,502.15 × 202,117.70
  4. Step 4: Simplify right side
    359,840.90x = 109,042,933,703.06
  5. Step 5: Solve for x
    x = 109,042,933,703.06/359,840.90
  6. Step 6: Final answer
    x = 303,030.96

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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.