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Finding the Fourth Proportional to 119,766.87, 179,659.40 and 69,851.93

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Solution

The fourth proportional to 119,766.87, 179,659.40 and 69,851.93 is: 104,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,766.87 : 179,659.40 = 69,851.93 : x
  2. Step 2: Convert to fraction form
    119,766.87/179,659.40 = 69,851.93/x
  3. Step 3: Cross multiply
    119,766.87x = 179,659.40 × 69,851.93
  4. Step 4: Simplify right side
    119,766.87x = 12,549,554,585.09
  5. Step 5: Solve for x
    x = 12,549,554,585.09/119,766.87
  6. Step 6: Final answer
    x = 104,783.19

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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.