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Finding the Fourth Proportional to 359,752.16, 539,343.55 and 135,087.57

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Solution

The fourth proportional to 359,752.16, 539,343.55 and 135,087.57 is: 202,524.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,752.16 : 539,343.55 = 135,087.57 : x
  2. Step 2: Convert to fraction form
    359,752.16/539,343.55 = 135,087.57/x
  3. Step 3: Cross multiply
    359,752.16x = 539,343.55 × 135,087.57
  4. Step 4: Simplify right side
    359,752.16x = 72,858,609,564.67
  5. Step 5: Solve for x
    x = 72,858,609,564.67/359,752.16
  6. Step 6: Final answer
    x = 202,524.45

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1.5x scale

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.