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Finding the Fourth Proportional to 125,277.47, 187,927.16 and 31,783.22

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Solution

The fourth proportional to 125,277.47, 187,927.16 and 31,783.22 is: 47,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,277.47 : 187,927.16 = 31,783.22 : x
  2. Step 2: Convert to fraction form
    125,277.47/187,927.16 = 31,783.22/x
  3. Step 3: Cross multiply
    125,277.47x = 187,927.16 × 31,783.22
  4. Step 4: Simplify right side
    125,277.47x = 5,972,929,876.43
  5. Step 5: Solve for x
    x = 5,972,929,876.43/125,277.47
  6. Step 6: Final answer
    x = 47,677.61

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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.