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Finding the Fourth Proportional to 146,795.70, 220,193.55 and 145,920.90

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Solution

The fourth proportional to 146,795.70, 220,193.55 and 145,920.90 is: 218,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,795.70 : 220,193.55 = 145,920.90 : x
  2. Step 2: Convert to fraction form
    146,795.70/220,193.55 = 145,920.90/x
  3. Step 3: Cross multiply
    146,795.70x = 220,193.55 × 145,920.90
  4. Step 4: Simplify right side
    146,795.70x = 32,130,840,990.20
  5. Step 5: Solve for x
    x = 32,130,840,990.20/146,795.70
  6. Step 6: Final answer
    x = 218,881.35

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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.