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Finding the Fourth Proportional to 292,244.40, 438,064.20 and 158,842.80

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Solution

The fourth proportional to 292,244.40, 438,064.20 and 158,842.80 is: 238,099.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,244.40 : 438,064.20 = 158,842.80 : x
  2. Step 2: Convert to fraction form
    292,244.40/438,064.20 = 158,842.80/x
  3. Step 3: Cross multiply
    292,244.40x = 438,064.20 × 158,842.80
  4. Step 4: Simplify right side
    292,244.40x = 69,583,344,107.76
  5. Step 5: Solve for x
    x = 69,583,344,107.76/292,244.40
  6. Step 6: Final answer
    x = 238,099.84

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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.