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Finding the Fourth Proportional to 141,531.30, 212,012.01 and 65,522.70

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Solution

The fourth proportional to 141,531.30, 212,012.01 and 65,522.70 is: 98,152.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,531.30 : 212,012.01 = 65,522.70 : x
  2. Step 2: Convert to fraction form
    141,531.30/212,012.01 = 65,522.70/x
  3. Step 3: Cross multiply
    141,531.30x = 212,012.01 × 65,522.70
  4. Step 4: Simplify right side
    141,531.30x = 13,891,599,327.63
  5. Step 5: Solve for x
    x = 13,891,599,327.63/141,531.30
  6. Step 6: Final answer
    x = 98,152.14

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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.