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Finding the Fourth Proportional to 162,040.80, 243,061.20 and 106,053.60

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Solution

The fourth proportional to 162,040.80, 243,061.20 and 106,053.60 is: 159,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,040.80 : 243,061.20 = 106,053.60 : x
  2. Step 2: Convert to fraction form
    162,040.80/243,061.20 = 106,053.60/x
  3. Step 3: Cross multiply
    162,040.80x = 243,061.20 × 106,053.60
  4. Step 4: Simplify right side
    162,040.80x = 25,777,515,280.32
  5. Step 5: Solve for x
    x = 25,777,515,280.32/162,040.80
  6. Step 6: Final answer
    x = 159,080.40

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1.5x scale

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.