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Finding the Fourth Proportional to 141,648.75, 212,473.13 and 43,152.75

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Solution

The fourth proportional to 141,648.75, 212,473.13 and 43,152.75 is: 64,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,648.75 : 212,473.13 = 43,152.75 : x
  2. Step 2: Convert to fraction form
    141,648.75/212,473.13 = 43,152.75/x
  3. Step 3: Cross multiply
    141,648.75x = 212,473.13 × 43,152.75
  4. Step 4: Simplify right side
    141,648.75x = 9,168,799,644.84
  5. Step 5: Solve for x
    x = 9,168,799,644.84/141,648.75
  6. Step 6: Final answer
    x = 64,729.13

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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.