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Finding the Fourth Proportional to 220,865.44, 331,329.48 and 71,070.93

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Solution

The fourth proportional to 220,865.44, 331,329.48 and 71,070.93 is: 106,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,865.44 : 331,329.48 = 71,070.93 : x
  2. Step 2: Convert to fraction form
    220,865.44/331,329.48 = 71,070.93/x
  3. Step 3: Cross multiply
    220,865.44x = 331,329.48 × 71,070.93
  4. Step 4: Simplify right side
    220,865.44x = 23,547,894,280.02
  5. Step 5: Solve for x
    x = 23,547,894,280.02/220,865.44
  6. Step 6: Final answer
    x = 106,616.47

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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.