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Finding the Fourth Proportional to 92,145.72, 127,160.96 and 51,859.76

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Solution

The fourth proportional to 92,145.72, 127,160.96 and 51,859.76 is: 71,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,145.72 : 127,160.96 = 51,859.76 : x
  2. Step 2: Convert to fraction form
    92,145.72/127,160.96 = 51,859.76/x
  3. Step 3: Cross multiply
    92,145.72x = 127,160.96 × 51,859.76
  4. Step 4: Simplify right side
    92,145.72x = 6,594,536,866.97
  5. Step 5: Solve for x
    x = 6,594,536,866.97/92,145.72
  6. Step 6: Final answer
    x = 71,566.39

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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.