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Finding the Fourth Proportional to 92,851.58, 139,258.91 and 45,446.30

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Solution

The fourth proportional to 92,851.58, 139,258.91 and 45,446.30 is: 68,160.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,851.58 : 139,258.91 = 45,446.30 : x
  2. Step 2: Convert to fraction form
    92,851.58/139,258.91 = 45,446.30/x
  3. Step 3: Cross multiply
    92,851.58x = 139,258.91 × 45,446.30
  4. Step 4: Simplify right side
    92,851.58x = 6,328,802,141.08
  5. Step 5: Solve for x
    x = 6,328,802,141.08/92,851.58
  6. Step 6: Final answer
    x = 68,160.41

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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.