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Finding the Fourth Proportional to 169,318.40, 254,563.20 and 158,355.20

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Solution

The fourth proportional to 169,318.40, 254,563.20 and 158,355.20 is: 238,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,318.40 : 254,563.20 = 158,355.20 : x
  2. Step 2: Convert to fraction form
    169,318.40/254,563.20 = 158,355.20/x
  3. Step 3: Cross multiply
    169,318.40x = 254,563.20 × 158,355.20
  4. Step 4: Simplify right side
    169,318.40x = 40,311,406,448.64
  5. Step 5: Solve for x
    x = 40,311,406,448.64/169,318.40
  6. Step 6: Final answer
    x = 238,080.48

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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.