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Finding the Fourth Proportional to 148,893.60, 223,314.80 and 55,351.20

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Solution

The fourth proportional to 148,893.60, 223,314.80 and 55,351.20 is: 83,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,893.60 : 223,314.80 = 55,351.20 : x
  2. Step 2: Convert to fraction form
    148,893.60/223,314.80 = 55,351.20/x
  3. Step 3: Cross multiply
    148,893.60x = 223,314.80 × 55,351.20
  4. Step 4: Simplify right side
    148,893.60x = 12,360,742,157.76
  5. Step 5: Solve for x
    x = 12,360,742,157.76/148,893.60
  6. Step 6: Final answer
    x = 83,017.28

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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.