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Finding the Fourth Proportional to 178,866.80, 268,300.20 and 158,649.20

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Solution

The fourth proportional to 178,866.80, 268,300.20 and 158,649.20 is: 237,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,866.80 : 268,300.20 = 158,649.20 : x
  2. Step 2: Convert to fraction form
    178,866.80/268,300.20 = 158,649.20/x
  3. Step 3: Cross multiply
    178,866.80x = 268,300.20 × 158,649.20
  4. Step 4: Simplify right side
    178,866.80x = 42,565,612,089.84
  5. Step 5: Solve for x
    x = 42,565,612,089.84/178,866.80
  6. Step 6: Final answer
    x = 237,973.80

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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.