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Finding the Fourth Proportional to 142,552.44, 213,885.90 and 53,830.98

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Solution

The fourth proportional to 142,552.44, 213,885.90 and 53,830.98 is: 80,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,552.44 : 213,885.90 = 53,830.98 : x
  2. Step 2: Convert to fraction form
    142,552.44/213,885.90 = 53,830.98/x
  3. Step 3: Cross multiply
    142,552.44x = 213,885.90 × 53,830.98
  4. Step 4: Simplify right side
    142,552.44x = 11,513,687,605.18
  5. Step 5: Solve for x
    x = 11,513,687,605.18/142,552.44
  6. Step 6: Final answer
    x = 80,768.09

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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.