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Finding the Fourth Proportional to 160,410.48, 240,823.08 and 86,590.32

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Solution

The fourth proportional to 160,410.48, 240,823.08 and 86,590.32 is: 129,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,410.48 : 240,823.08 = 86,590.32 : x
  2. Step 2: Convert to fraction form
    160,410.48/240,823.08 = 86,590.32/x
  3. Step 3: Cross multiply
    160,410.48x = 240,823.08 × 86,590.32
  4. Step 4: Simplify right side
    160,410.48x = 20,852,947,560.59
  5. Step 5: Solve for x
    x = 20,852,947,560.59/160,410.48
  6. Step 6: Final answer
    x = 129,997.41

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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.