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Finding the Fourth Proportional to 148,960.80, 223,477.20 and 43,779.60

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Solution

The fourth proportional to 148,960.80, 223,477.20 and 43,779.60 is: 65,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.80 : 223,477.20 = 43,779.60 : x
  2. Step 2: Convert to fraction form
    148,960.80/223,477.20 = 43,779.60/x
  3. Step 3: Cross multiply
    148,960.80x = 223,477.20 × 43,779.60
  4. Step 4: Simplify right side
    148,960.80x = 9,783,742,425.12
  5. Step 5: Solve for x
    x = 9,783,742,425.12/148,960.80
  6. Step 6: Final answer
    x = 65,679.98

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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.