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Finding the Fourth Proportional to 99,351.40, 148,940.70 and 59,866.60

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Solution

The fourth proportional to 99,351.40, 148,940.70 and 59,866.60 is: 89,747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,351.40 : 148,940.70 = 59,866.60 : x
  2. Step 2: Convert to fraction form
    99,351.40/148,940.70 = 59,866.60/x
  3. Step 3: Cross multiply
    99,351.40x = 148,940.70 × 59,866.60
  4. Step 4: Simplify right side
    99,351.40x = 8,916,573,310.62
  5. Step 5: Solve for x
    x = 8,916,573,310.62/99,351.40
  6. Step 6: Final answer
    x = 89,747.84

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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.