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Finding the Fourth Proportional to 171,753.40, 257,630.10 and 47,094.20

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Solution

The fourth proportional to 171,753.40, 257,630.10 and 47,094.20 is: 70,641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,753.40 : 257,630.10 = 47,094.20 : x
  2. Step 2: Convert to fraction form
    171,753.40/257,630.10 = 47,094.20/x
  3. Step 3: Cross multiply
    171,753.40x = 257,630.10 × 47,094.20
  4. Step 4: Simplify right side
    171,753.40x = 12,132,883,455.42
  5. Step 5: Solve for x
    x = 12,132,883,455.42/171,753.40
  6. Step 6: Final answer
    x = 70,641.30

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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.