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Finding the Fourth Proportional to 151,710.60, 209,273.58 and 88,040.28

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Solution

The fourth proportional to 151,710.60, 209,273.58 and 88,040.28 is: 121,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,710.60 : 209,273.58 = 88,040.28 : x
  2. Step 2: Convert to fraction form
    151,710.60/209,273.58 = 88,040.28/x
  3. Step 3: Cross multiply
    151,710.60x = 209,273.58 × 88,040.28
  4. Step 4: Simplify right side
    151,710.60x = 18,424,504,579.80
  5. Step 5: Solve for x
    x = 18,424,504,579.80/151,710.60
  6. Step 6: Final answer
    x = 121,445.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.