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Finding the Fourth Proportional to 240,761.75, 361,141.74 and 72,281.34

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Solution

The fourth proportional to 240,761.75, 361,141.74 and 72,281.34 is: 108,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,761.75 : 361,141.74 = 72,281.34 : x
  2. Step 2: Convert to fraction form
    240,761.75/361,141.74 = 72,281.34/x
  3. Step 3: Cross multiply
    240,761.75x = 361,141.74 × 72,281.34
  4. Step 4: Simplify right side
    240,761.75x = 26,103,808,897.13
  5. Step 5: Solve for x
    x = 26,103,808,897.13/240,761.75
  6. Step 6: Final answer
    x = 108,421.75

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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.