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Finding the Fourth Proportional to 173,520.96, 239,486.08 and 105,559.04

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Solution

The fourth proportional to 173,520.96, 239,486.08 and 105,559.04 is: 145,687.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,520.96 : 239,486.08 = 105,559.04 : x
  2. Step 2: Convert to fraction form
    173,520.96/239,486.08 = 105,559.04/x
  3. Step 3: Cross multiply
    173,520.96x = 239,486.08 × 105,559.04
  4. Step 4: Simplify right side
    173,520.96x = 25,279,920,698.16
  5. Step 5: Solve for x
    x = 25,279,920,698.16/173,520.96
  6. Step 6: Final answer
    x = 145,687.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.