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Finding the Fourth Proportional to 160,986.60, 241,469.10 and 42,655.40

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Solution

The fourth proportional to 160,986.60, 241,469.10 and 42,655.40 is: 63,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,986.60 : 241,469.10 = 42,655.40 : x
  2. Step 2: Convert to fraction form
    160,986.60/241,469.10 = 42,655.40/x
  3. Step 3: Cross multiply
    160,986.60x = 241,469.10 × 42,655.40
  4. Step 4: Simplify right side
    160,986.60x = 10,299,961,048.14
  5. Step 5: Solve for x
    x = 10,299,961,048.14/160,986.60
  6. Step 6: Final answer
    x = 63,980.24

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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.