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Finding the Fourth Proportional to 146,728.90, 220,093.35 and 53,200.90

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Solution

The fourth proportional to 146,728.90, 220,093.35 and 53,200.90 is: 79,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,728.90 : 220,093.35 = 53,200.90 : x
  2. Step 2: Convert to fraction form
    146,728.90/220,093.35 = 53,200.90/x
  3. Step 3: Cross multiply
    146,728.90x = 220,093.35 × 53,200.90
  4. Step 4: Simplify right side
    146,728.90x = 11,709,164,304.02
  5. Step 5: Solve for x
    x = 11,709,164,304.02/146,728.90
  6. Step 6: Final answer
    x = 79,801.35

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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.