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Finding the Fourth Proportional to 92,141.89, 127,155.54 and 51,855.65

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Solution

The fourth proportional to 92,141.89, 127,155.54 and 51,855.65 is: 71,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,141.89 : 127,155.54 = 51,855.65 : x
  2. Step 2: Convert to fraction form
    92,141.89/127,155.54 = 51,855.65/x
  3. Step 3: Cross multiply
    92,141.89x = 127,155.54 × 51,855.65
  4. Step 4: Simplify right side
    92,141.89x = 6,593,732,412.38
  5. Step 5: Solve for x
    x = 6,593,732,412.38/92,141.89
  6. Step 6: Final answer
    x = 71,560.64

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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.