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Finding the Fourth Proportional to 181,808.10, 272,493.45 and 93,015.90

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Solution

The fourth proportional to 181,808.10, 272,493.45 and 93,015.90 is: 139,411.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,808.10 : 272,493.45 = 93,015.90 : x
  2. Step 2: Convert to fraction form
    181,808.10/272,493.45 = 93,015.90/x
  3. Step 3: Cross multiply
    181,808.10x = 272,493.45 × 93,015.90
  4. Step 4: Simplify right side
    181,808.10x = 25,346,223,495.86
  5. Step 5: Solve for x
    x = 25,346,223,495.86/181,808.10
  6. Step 6: Final answer
    x = 139,411.96

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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.