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Finding the Fourth Proportional to 108,038.30, 161,850.90 and 58,101.80

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Solution

The fourth proportional to 108,038.30, 161,850.90 and 58,101.80 is: 87,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,038.30 : 161,850.90 = 58,101.80 : x
  2. Step 2: Convert to fraction form
    108,038.30/161,850.90 = 58,101.80/x
  3. Step 3: Cross multiply
    108,038.30x = 161,850.90 × 58,101.80
  4. Step 4: Simplify right side
    108,038.30x = 9,403,828,621.62
  5. Step 5: Solve for x
    x = 9,403,828,621.62/108,038.30
  6. Step 6: Final answer
    x = 87,041.62

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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.