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Finding the Fourth Proportional to 75,223.56, 103,855.77 and 48,412.76

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Solution

The fourth proportional to 75,223.56, 103,855.77 and 48,412.76 is: 66,840.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,223.56 : 103,855.77 = 48,412.76 : x
  2. Step 2: Convert to fraction form
    75,223.56/103,855.77 = 48,412.76/x
  3. Step 3: Cross multiply
    75,223.56x = 103,855.77 × 48,412.76
  4. Step 4: Simplify right side
    75,223.56x = 5,027,943,948.35
  5. Step 5: Solve for x
    x = 5,027,943,948.35/75,223.56
  6. Step 6: Final answer
    x = 66,840.02

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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.