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Finding the Fourth Proportional to 119,751.20, 179,626.80 and 93,312.80

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Solution

The fourth proportional to 119,751.20, 179,626.80 and 93,312.80 is: 139,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,751.20 : 179,626.80 = 93,312.80 : x
  2. Step 2: Convert to fraction form
    119,751.20/179,626.80 = 93,312.80/x
  3. Step 3: Cross multiply
    119,751.20x = 179,626.80 × 93,312.80
  4. Step 4: Simplify right side
    119,751.20x = 16,761,479,663.04
  5. Step 5: Solve for x
    x = 16,761,479,663.04/119,751.20
  6. Step 6: Final answer
    x = 139,969.20

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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.