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Finding the Fourth Proportional to 162,810.80, 244,289.10 and 74,018.60

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Solution

The fourth proportional to 162,810.80, 244,289.10 and 74,018.60 is: 111,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,810.80 : 244,289.10 = 74,018.60 : x
  2. Step 2: Convert to fraction form
    162,810.80/244,289.10 = 74,018.60/x
  3. Step 3: Cross multiply
    162,810.80x = 244,289.10 × 74,018.60
  4. Step 4: Simplify right side
    162,810.80x = 18,081,937,177.26
  5. Step 5: Solve for x
    x = 18,081,937,177.26/162,810.80
  6. Step 6: Final answer
    x = 111,061.04

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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.