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Finding the Fourth Proportional to 125,842.68, 173,662.80 and 69,254.10

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Solution

The fourth proportional to 125,842.68, 173,662.80 and 69,254.10 is: 95,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,842.68 : 173,662.80 = 69,254.10 : x
  2. Step 2: Convert to fraction form
    125,842.68/173,662.80 = 69,254.10/x
  3. Step 3: Cross multiply
    125,842.68x = 173,662.80 × 69,254.10
  4. Step 4: Simplify right side
    125,842.68x = 12,026,860,917.48
  5. Step 5: Solve for x
    x = 12,026,860,917.48/125,842.68
  6. Step 6: Final answer
    x = 95,570.60

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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.