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Finding the Fourth Proportional to 119,894.40, 179,987.40 and 60,699.60

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Solution

The fourth proportional to 119,894.40, 179,987.40 and 60,699.60 is: 91,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,894.40 : 179,987.40 = 60,699.60 : x
  2. Step 2: Convert to fraction form
    119,894.40/179,987.40 = 60,699.60/x
  3. Step 3: Cross multiply
    119,894.40x = 179,987.40 × 60,699.60
  4. Step 4: Simplify right side
    119,894.40x = 10,925,163,185.04
  5. Step 5: Solve for x
    x = 10,925,163,185.04/119,894.40
  6. Step 6: Final answer
    x = 91,123.21

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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.