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Finding the Fourth Proportional to 74,217.60, 111,326.40 and 48,848.40

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Solution

The fourth proportional to 74,217.60, 111,326.40 and 48,848.40 is: 73,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.60 : 111,326.40 = 48,848.40 : x
  2. Step 2: Convert to fraction form
    74,217.60/111,326.40 = 48,848.40/x
  3. Step 3: Cross multiply
    74,217.60x = 111,326.40 × 48,848.40
  4. Step 4: Simplify right side
    74,217.60x = 5,438,116,517.76
  5. Step 5: Solve for x
    x = 5,438,116,517.76/74,217.60
  6. Step 6: Final answer
    x = 73,272.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.