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Finding the Fourth Proportional to 141,759.66, 212,728.49 and 57,520.16

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Solution

The fourth proportional to 141,759.66, 212,728.49 and 57,520.16 is: 86,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,759.66 : 212,728.49 = 57,520.16 : x
  2. Step 2: Convert to fraction form
    141,759.66/212,728.49 = 57,520.16/x
  3. Step 3: Cross multiply
    141,759.66x = 212,728.49 × 57,520.16
  4. Step 4: Simplify right side
    141,759.66x = 12,236,176,781.36
  5. Step 5: Solve for x
    x = 12,236,176,781.36/141,759.66
  6. Step 6: Final answer
    x = 86,316.35

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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.