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Finding the Fourth Proportional to 75,057, 103,580.60 and 45,250.92

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Solution

The fourth proportional to 75,057, 103,580.60 and 45,250.92 is: 62,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,057 : 103,580.60 = 45,250.92 : x
  2. Step 2: Convert to fraction form
    75,057/103,580.60 = 45,250.92/x
  3. Step 3: Cross multiply
    75,057x = 103,580.60 × 45,250.92
  4. Step 4: Simplify right side
    75,057x = 4,687,117,444.15
  5. Step 5: Solve for x
    x = 4,687,117,444.15/75,057
  6. Step 6: Final answer
    x = 62,447.44

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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.