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Finding the Fourth Proportional to 141,758.66, 212,726.99 and 57,519.16

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Solution

The fourth proportional to 141,758.66, 212,726.99 and 57,519.16 is: 86,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,758.66 : 212,726.99 = 57,519.16 : x
  2. Step 2: Convert to fraction form
    141,758.66/212,726.99 = 57,519.16/x
  3. Step 3: Cross multiply
    141,758.66x = 212,726.99 × 57,519.16
  4. Step 4: Simplify right side
    141,758.66x = 12,235,877,386.11
  5. Step 5: Solve for x
    x = 12,235,877,386.11/141,758.66
  6. Step 6: Final answer
    x = 86,314.85

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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.