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Finding the Fourth Proportional to 125,392.24, 187,943.46 and 57,782.91

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Solution

The fourth proportional to 125,392.24, 187,943.46 and 57,782.91 is: 86,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,392.24 : 187,943.46 = 57,782.91 : x
  2. Step 2: Convert to fraction form
    125,392.24/187,943.46 = 57,782.91/x
  3. Step 3: Cross multiply
    125,392.24x = 187,943.46 × 57,782.91
  4. Step 4: Simplify right side
    125,392.24x = 10,859,920,034.27
  5. Step 5: Solve for x
    x = 10,859,920,034.27/125,392.24
  6. Step 6: Final answer
    x = 86,607.59

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1.5x scale

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.