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Finding the Fourth Proportional to 72,448.90, 108,673.35 and 48,829.30

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Solution

The fourth proportional to 72,448.90, 108,673.35 and 48,829.30 is: 73,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448.90 : 108,673.35 = 48,829.30 : x
  2. Step 2: Convert to fraction form
    72,448.90/108,673.35 = 48,829.30/x
  3. Step 3: Cross multiply
    72,448.90x = 108,673.35 × 48,829.30
  4. Step 4: Simplify right side
    72,448.90x = 5,306,443,609.16
  5. Step 5: Solve for x
    x = 5,306,443,609.16/72,448.90
  6. Step 6: Final answer
    x = 73,243.95

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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.