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Finding the Fourth Proportional to 75,049, 103,569.56 and 45,242.92

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Solution

The fourth proportional to 75,049, 103,569.56 and 45,242.92 is: 62,436.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,049 : 103,569.56 = 45,242.92 : x
  2. Step 2: Convert to fraction form
    75,049/103,569.56 = 45,242.92/x
  3. Step 3: Cross multiply
    75,049x = 103,569.56 × 45,242.92
  4. Step 4: Simplify right side
    75,049x = 4,685,789,317.52
  5. Step 5: Solve for x
    x = 4,685,789,317.52/75,049
  6. Step 6: Final answer
    x = 62,436.40

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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.