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Finding the Fourth Proportional to 160,470.59, 221,452.88 and 87,876.54

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Solution

The fourth proportional to 160,470.59, 221,452.88 and 87,876.54 is: 121,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,470.59 : 221,452.88 = 87,876.54 : x
  2. Step 2: Convert to fraction form
    160,470.59/221,452.88 = 87,876.54/x
  3. Step 3: Cross multiply
    160,470.59x = 221,452.88 × 87,876.54
  4. Step 4: Simplify right side
    160,470.59x = 19,460,512,428.05
  5. Step 5: Solve for x
    x = 19,460,512,428.05/160,470.59
  6. Step 6: Final answer
    x = 121,271.52

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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.