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Finding the Fourth Proportional to 141,988.34, 212,952.44 and 53,248.39

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Solution

The fourth proportional to 141,988.34, 212,952.44 and 53,248.39 is: 79,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,988.34 : 212,952.44 = 53,248.39 : x
  2. Step 2: Convert to fraction form
    141,988.34/212,952.44 = 53,248.39/x
  3. Step 3: Cross multiply
    141,988.34x = 212,952.44 × 53,248.39
  4. Step 4: Simplify right side
    141,988.34x = 11,339,374,177.31
  5. Step 5: Solve for x
    x = 11,339,374,177.31/141,988.34
  6. Step 6: Final answer
    x = 79,861.30

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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.