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Finding the Fourth Proportional to 142,561.50, 213,842.25 and 44,065.50

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Solution

The fourth proportional to 142,561.50, 213,842.25 and 44,065.50 is: 66,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,561.50 : 213,842.25 = 44,065.50 : x
  2. Step 2: Convert to fraction form
    142,561.50/213,842.25 = 44,065.50/x
  3. Step 3: Cross multiply
    142,561.50x = 213,842.25 × 44,065.50
  4. Step 4: Simplify right side
    142,561.50x = 9,423,065,667.38
  5. Step 5: Solve for x
    x = 9,423,065,667.38/142,561.50
  6. Step 6: Final answer
    x = 66,098.25

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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.