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Finding the Fourth Proportional to 160,967.80, 241,451.70 and 42,657.40

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Solution

The fourth proportional to 160,967.80, 241,451.70 and 42,657.40 is: 63,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,967.80 : 241,451.70 = 42,657.40 : x
  2. Step 2: Convert to fraction form
    160,967.80/241,451.70 = 42,657.40/x
  3. Step 3: Cross multiply
    160,967.80x = 241,451.70 × 42,657.40
  4. Step 4: Simplify right side
    160,967.80x = 10,299,701,747.58
  5. Step 5: Solve for x
    x = 10,299,701,747.58/160,967.80
  6. Step 6: Final answer
    x = 63,986.10

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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.