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Finding the Fourth Proportional to 143,886.20, 215,810.40 and 44,056.40

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Solution

The fourth proportional to 143,886.20, 215,810.40 and 44,056.40 is: 66,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,886.20 : 215,810.40 = 44,056.40 : x
  2. Step 2: Convert to fraction form
    143,886.20/215,810.40 = 44,056.40/x
  3. Step 3: Cross multiply
    143,886.20x = 215,810.40 × 44,056.40
  4. Step 4: Simplify right side
    143,886.20x = 9,507,829,306.56
  5. Step 5: Solve for x
    x = 9,507,829,306.56/143,886.20
  6. Step 6: Final answer
    x = 66,078.81

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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.