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Finding the Fourth Proportional to 359,552.21, 539,188.15 and 134,790.01

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Solution

The fourth proportional to 359,552.21, 539,188.15 and 134,790.01 is: 202,132.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,552.21 : 539,188.15 = 134,790.01 : x
  2. Step 2: Convert to fraction form
    359,552.21/539,188.15 = 134,790.01/x
  3. Step 3: Cross multiply
    359,552.21x = 539,188.15 × 134,790.01
  4. Step 4: Simplify right side
    359,552.21x = 72,677,173,434.44
  5. Step 5: Solve for x
    x = 72,677,173,434.44/359,552.21
  6. Step 6: Final answer
    x = 202,132.46

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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.