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Finding the Fourth Proportional to 96,348.70, 144,436.65 and 85,851.10

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Solution

The fourth proportional to 96,348.70, 144,436.65 and 85,851.10 is: 128,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,348.70 : 144,436.65 = 85,851.10 : x
  2. Step 2: Convert to fraction form
    96,348.70/144,436.65 = 85,851.10/x
  3. Step 3: Cross multiply
    96,348.70x = 144,436.65 × 85,851.10
  4. Step 4: Simplify right side
    96,348.70x = 12,400,045,282.82
  5. Step 5: Solve for x
    x = 12,400,045,282.82/96,348.70
  6. Step 6: Final answer
    x = 128,699.66

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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.