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Finding the Fourth Proportional to 74,885.28, 103,332.88 and 41,349.28

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Solution

The fourth proportional to 74,885.28, 103,332.88 and 41,349.28 is: 57,057.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885.28 : 103,332.88 = 41,349.28 : x
  2. Step 2: Convert to fraction form
    74,885.28/103,332.88 = 41,349.28/x
  3. Step 3: Cross multiply
    74,885.28x = 103,332.88 × 41,349.28
  4. Step 4: Simplify right side
    74,885.28x = 4,272,740,188.33
  5. Step 5: Solve for x
    x = 4,272,740,188.33/74,885.28
  6. Step 6: Final answer
    x = 57,057.14

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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.