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Finding the Fourth Proportional to 148,980.72, 223,471.08 and 43,800.60

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Solution

The fourth proportional to 148,980.72, 223,471.08 and 43,800.60 is: 65,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,980.72 : 223,471.08 = 43,800.60 : x
  2. Step 2: Convert to fraction form
    148,980.72/223,471.08 = 43,800.60/x
  3. Step 3: Cross multiply
    148,980.72x = 223,471.08 × 43,800.60
  4. Step 4: Simplify right side
    148,980.72x = 9,788,167,386.65
  5. Step 5: Solve for x
    x = 9,788,167,386.65/148,980.72
  6. Step 6: Final answer
    x = 65,700.90

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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.