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Finding the Fourth Proportional to 173,842.90, 260,764.35 and 85,110.10

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Solution

The fourth proportional to 173,842.90, 260,764.35 and 85,110.10 is: 127,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,842.90 : 260,764.35 = 85,110.10 : x
  2. Step 2: Convert to fraction form
    173,842.90/260,764.35 = 85,110.10/x
  3. Step 3: Cross multiply
    173,842.90x = 260,764.35 × 85,110.10
  4. Step 4: Simplify right side
    173,842.90x = 22,193,679,904.94
  5. Step 5: Solve for x
    x = 22,193,679,904.94/173,842.90
  6. Step 6: Final answer
    x = 127,665.15

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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.