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Finding the Fourth Proportional to 85,466.66, 117,937.91 and 47,225.80

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Solution

The fourth proportional to 85,466.66, 117,937.91 and 47,225.80 is: 65,168.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,466.66 : 117,937.91 = 47,225.80 : x
  2. Step 2: Convert to fraction form
    85,466.66/117,937.91 = 47,225.80/x
  3. Step 3: Cross multiply
    85,466.66x = 117,937.91 × 47,225.80
  4. Step 4: Simplify right side
    85,466.66x = 5,569,711,973.30
  5. Step 5: Solve for x
    x = 5,569,711,973.30/85,466.66
  6. Step 6: Final answer
    x = 65,168.24

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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.