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Finding the Fourth Proportional to 78,459.44, 108,277.98 and 48,246.44

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Solution

The fourth proportional to 78,459.44, 108,277.98 and 48,246.44 is: 66,582.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,459.44 : 108,277.98 = 48,246.44 : x
  2. Step 2: Convert to fraction form
    78,459.44/108,277.98 = 48,246.44/x
  3. Step 3: Cross multiply
    78,459.44x = 108,277.98 × 48,246.44
  4. Step 4: Simplify right side
    78,459.44x = 5,224,027,065.39
  5. Step 5: Solve for x
    x = 5,224,027,065.39/78,459.44
  6. Step 6: Final answer
    x = 66,582.52

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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.