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Finding the Fourth Proportional to 215,064.60, 322,596.90 and 144,562.20

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Solution

The fourth proportional to 215,064.60, 322,596.90 and 144,562.20 is: 216,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,064.60 : 322,596.90 = 144,562.20 : x
  2. Step 2: Convert to fraction form
    215,064.60/322,596.90 = 144,562.20/x
  3. Step 3: Cross multiply
    215,064.60x = 322,596.90 × 144,562.20
  4. Step 4: Simplify right side
    215,064.60x = 46,635,317,577.18
  5. Step 5: Solve for x
    x = 46,635,317,577.18/215,064.60
  6. Step 6: Final answer
    x = 216,843.30

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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.