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Finding the Fourth Proportional to 312,659.04, 468,947.03 and 88,036.99

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Solution

The fourth proportional to 312,659.04, 468,947.03 and 88,036.99 is: 132,043.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,659.04 : 468,947.03 = 88,036.99 : x
  2. Step 2: Convert to fraction form
    312,659.04/468,947.03 = 88,036.99/x
  3. Step 3: Cross multiply
    312,659.04x = 468,947.03 × 88,036.99
  4. Step 4: Simplify right side
    312,659.04x = 41,284,684,990.64
  5. Step 5: Solve for x
    x = 41,284,684,990.64/312,659.04
  6. Step 6: Final answer
    x = 132,043.79

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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.