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Finding the Fourth Proportional to 119,878.68, 179,788.86 and 56,696.25

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Solution

The fourth proportional to 119,878.68, 179,788.86 and 56,696.25 is: 85,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,878.68 : 179,788.86 = 56,696.25 : x
  2. Step 2: Convert to fraction form
    119,878.68/179,788.86 = 56,696.25/x
  3. Step 3: Cross multiply
    119,878.68x = 179,788.86 × 56,696.25
  4. Step 4: Simplify right side
    119,878.68x = 10,193,354,153.78
  5. Step 5: Solve for x
    x = 10,193,354,153.78/119,878.68
  6. Step 6: Final answer
    x = 85,030.58

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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.