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Finding the Fourth Proportional to 75,352.25, 103,968.65 and 45,126.11

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Solution

The fourth proportional to 75,352.25, 103,968.65 and 45,126.11 is: 62,263.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,352.25 : 103,968.65 = 45,126.11 : x
  2. Step 2: Convert to fraction form
    75,352.25/103,968.65 = 45,126.11/x
  3. Step 3: Cross multiply
    75,352.25x = 103,968.65 × 45,126.11
  4. Step 4: Simplify right side
    75,352.25x = 4,691,700,216.61
  5. Step 5: Solve for x
    x = 4,691,700,216.61/75,352.25
  6. Step 6: Final answer
    x = 62,263.58

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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.