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Finding the Fourth Proportional to 119,873.79, 179,810.77 and 40,988.61

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Solution

The fourth proportional to 119,873.79, 179,810.77 and 40,988.61 is: 61,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,873.79 : 179,810.77 = 40,988.61 : x
  2. Step 2: Convert to fraction form
    119,873.79/179,810.77 = 40,988.61/x
  3. Step 3: Cross multiply
    119,873.79x = 179,810.77 × 40,988.61
  4. Step 4: Simplify right side
    119,873.79x = 7,370,193,525.33
  5. Step 5: Solve for x
    x = 7,370,193,525.33/119,873.79
  6. Step 6: Final answer
    x = 61,482.94

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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.