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Finding the Fourth Proportional to 359,531.32, 496,152.84 and 198,386.32

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Solution

The fourth proportional to 359,531.32, 496,152.84 and 198,386.32 is: 273,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,531.32 : 496,152.84 = 198,386.32 : x
  2. Step 2: Convert to fraction form
    359,531.32/496,152.84 = 198,386.32/x
  3. Step 3: Cross multiply
    359,531.32x = 496,152.84 × 198,386.32
  4. Step 4: Simplify right side
    359,531.32x = 98,429,936,085.15
  5. Step 5: Solve for x
    x = 98,429,936,085.15/359,531.32
  6. Step 6: Final answer
    x = 273,772.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.