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Finding the Fourth Proportional to 75,103.92, 103,644.90 and 46,427.76

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Solution

The fourth proportional to 75,103.92, 103,644.90 and 46,427.76 is: 64,071.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,103.92 : 103,644.90 = 46,427.76 : x
  2. Step 2: Convert to fraction form
    75,103.92/103,644.90 = 46,427.76/x
  3. Step 3: Cross multiply
    75,103.92x = 103,644.90 × 46,427.76
  4. Step 4: Simplify right side
    75,103.92x = 4,812,000,542.42
  5. Step 5: Solve for x
    x = 4,812,000,542.42/75,103.92
  6. Step 6: Final answer
    x = 64,071.23

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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.