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Finding the Fourth Proportional to 71,606.90, 107,525.10 and 56,937.80

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Solution

The fourth proportional to 71,606.90, 107,525.10 and 56,937.80 is: 85,497.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,606.90 : 107,525.10 = 56,937.80 : x
  2. Step 2: Convert to fraction form
    71,606.90/107,525.10 = 56,937.80/x
  3. Step 3: Cross multiply
    71,606.90x = 107,525.10 × 56,937.80
  4. Step 4: Simplify right side
    71,606.90x = 6,122,242,638.78
  5. Step 5: Solve for x
    x = 6,122,242,638.78/71,606.90
  6. Step 6: Final answer
    x = 85,497.94

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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.