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Finding the Fourth Proportional to 92,177.88, 127,215 and 56,391.68

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Solution

The fourth proportional to 92,177.88, 127,215 and 56,391.68 is: 77,826.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,177.88 : 127,215 = 56,391.68 : x
  2. Step 2: Convert to fraction form
    92,177.88/127,215 = 56,391.68/x
  3. Step 3: Cross multiply
    92,177.88x = 127,215 × 56,391.68
  4. Step 4: Simplify right side
    92,177.88x = 7,173,866,935.13
  5. Step 5: Solve for x
    x = 7,173,866,935.13/92,177.88
  6. Step 6: Final answer
    x = 77,826.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.