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Finding the Fourth Proportional to 72,235.30, 108,352.95 and 48,615.70

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Solution

The fourth proportional to 72,235.30, 108,352.95 and 48,615.70 is: 72,923.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,235.30 : 108,352.95 = 48,615.70 : x
  2. Step 2: Convert to fraction form
    72,235.30/108,352.95 = 48,615.70/x
  3. Step 3: Cross multiply
    72,235.30x = 108,352.95 × 48,615.70
  4. Step 4: Simplify right side
    72,235.30x = 5,267,654,511.32
  5. Step 5: Solve for x
    x = 5,267,654,511.32/72,235.30
  6. Step 6: Final answer
    x = 72,923.55

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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.