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Finding the Fourth Proportional to 173,856.80, 260,785.20 and 111,648.80

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Solution

The fourth proportional to 173,856.80, 260,785.20 and 111,648.80 is: 167,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,856.80 : 260,785.20 = 111,648.80 : x
  2. Step 2: Convert to fraction form
    173,856.80/260,785.20 = 111,648.80/x
  3. Step 3: Cross multiply
    173,856.80x = 260,785.20 × 111,648.80
  4. Step 4: Simplify right side
    173,856.80x = 29,116,354,637.76
  5. Step 5: Solve for x
    x = 29,116,354,637.76/173,856.80
  6. Step 6: Final answer
    x = 167,473.20

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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.