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Finding the Fourth Proportional to 148,735.20, 223,102.80 and 89,686.20

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Solution

The fourth proportional to 148,735.20, 223,102.80 and 89,686.20 is: 134,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,735.20 : 223,102.80 = 89,686.20 : x
  2. Step 2: Convert to fraction form
    148,735.20/223,102.80 = 89,686.20/x
  3. Step 3: Cross multiply
    148,735.20x = 223,102.80 × 89,686.20
  4. Step 4: Simplify right side
    148,735.20x = 20,009,242,341.36
  5. Step 5: Solve for x
    x = 20,009,242,341.36/148,735.20
  6. Step 6: Final answer
    x = 134,529.30

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1.5x scale

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.