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Finding the Fourth Proportional to 99,104.87, 148,638.80 and 45,794.77

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Solution

The fourth proportional to 99,104.87, 148,638.80 and 45,794.77 is: 68,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,104.87 : 148,638.80 = 45,794.77 : x
  2. Step 2: Convert to fraction form
    99,104.87/148,638.80 = 45,794.77/x
  3. Step 3: Cross multiply
    99,104.87x = 148,638.80 × 45,794.77
  4. Step 4: Simplify right side
    99,104.87x = 6,806,879,401.97
  5. Step 5: Solve for x
    x = 6,806,879,401.97/99,104.87
  6. Step 6: Final answer
    x = 68,683.60

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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.