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Finding the Fourth Proportional to 148,832.70, 205,385.67 and 85,184.70

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Solution

The fourth proportional to 148,832.70, 205,385.67 and 85,184.70 is: 117,552.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,832.70 : 205,385.67 = 85,184.70 : x
  2. Step 2: Convert to fraction form
    148,832.70/205,385.67 = 85,184.70/x
  3. Step 3: Cross multiply
    148,832.70x = 205,385.67 × 85,184.70
  4. Step 4: Simplify right side
    148,832.70x = 17,495,716,683.25
  5. Step 5: Solve for x
    x = 17,495,716,683.25/148,832.70
  6. Step 6: Final answer
    x = 117,552.91

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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.