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Finding the Fourth Proportional to 71,150.54, 98,142.84 and 45,630.14

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Solution

The fourth proportional to 71,150.54, 98,142.84 and 45,630.14 is: 62,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,150.54 : 98,142.84 = 45,630.14 : x
  2. Step 2: Convert to fraction form
    71,150.54/98,142.84 = 45,630.14/x
  3. Step 3: Cross multiply
    71,150.54x = 98,142.84 × 45,630.14
  4. Step 4: Simplify right side
    71,150.54x = 4,478,271,038.48
  5. Step 5: Solve for x
    x = 4,478,271,038.48/71,150.54
  6. Step 6: Final answer
    x = 62,940.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.