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Finding the Fourth Proportional to 179,368.60, 268,955.70 and 74,068.60

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Solution

The fourth proportional to 179,368.60, 268,955.70 and 74,068.60 is: 111,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,368.60 : 268,955.70 = 74,068.60 : x
  2. Step 2: Convert to fraction form
    179,368.60/268,955.70 = 74,068.60/x
  3. Step 3: Cross multiply
    179,368.60x = 268,955.70 × 74,068.60
  4. Step 4: Simplify right side
    179,368.60x = 19,921,172,161.02
  5. Step 5: Solve for x
    x = 19,921,172,161.02/179,368.60
  6. Step 6: Final answer
    x = 111,062.76

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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.