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Finding the Fourth Proportional to 96,599.50, 133,261.95 and 68,320.78

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Solution

The fourth proportional to 96,599.50, 133,261.95 and 68,320.78 is: 94,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,599.50 : 133,261.95 = 68,320.78 : x
  2. Step 2: Convert to fraction form
    96,599.50/133,261.95 = 68,320.78/x
  3. Step 3: Cross multiply
    96,599.50x = 133,261.95 × 68,320.78
  4. Step 4: Simplify right side
    96,599.50x = 9,104,560,368.32
  5. Step 5: Solve for x
    x = 9,104,560,368.32/96,599.50
  6. Step 6: Final answer
    x = 94,250.60

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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.