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Finding the Fourth Proportional to 359,276.56, 539,001.41 and 134,638.98

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Solution

The fourth proportional to 359,276.56, 539,001.41 and 134,638.98 is: 201,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,276.56 : 539,001.41 = 134,638.98 : x
  2. Step 2: Convert to fraction form
    359,276.56/539,001.41 = 134,638.98/x
  3. Step 3: Cross multiply
    359,276.56x = 539,001.41 × 134,638.98
  4. Step 4: Simplify right side
    359,276.56x = 72,570,603,050.35
  5. Step 5: Solve for x
    x = 72,570,603,050.35/359,276.56
  6. Step 6: Final answer
    x = 201,990.92

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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.