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Finding the Fourth Proportional to 112,167, 154,793.70 and 61,869.24

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Solution

The fourth proportional to 112,167, 154,793.70 and 61,869.24 is: 85,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,167 : 154,793.70 = 61,869.24 : x
  2. Step 2: Convert to fraction form
    112,167/154,793.70 = 61,869.24/x
  3. Step 3: Cross multiply
    112,167x = 154,793.70 × 61,869.24
  4. Step 4: Simplify right side
    112,167x = 9,576,968,575.79
  5. Step 5: Solve for x
    x = 9,576,968,575.79/112,167
  6. Step 6: Final answer
    x = 85,381.34

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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.