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Finding the Fourth Proportional to 181,985.40, 272,978.10 and 175,861.80

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Solution

The fourth proportional to 181,985.40, 272,978.10 and 175,861.80 is: 263,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,985.40 : 272,978.10 = 175,861.80 : x
  2. Step 2: Convert to fraction form
    181,985.40/272,978.10 = 175,861.80/x
  3. Step 3: Cross multiply
    181,985.40x = 272,978.10 × 175,861.80
  4. Step 4: Simplify right side
    181,985.40x = 48,006,420,026.58
  5. Step 5: Solve for x
    x = 48,006,420,026.58/181,985.40
  6. Step 6: Final answer
    x = 263,792.70

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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.