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Finding the Fourth Proportional to 131,913.33, 197,737.53 and 65,401.80

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Solution

The fourth proportional to 131,913.33, 197,737.53 and 65,401.80 is: 98,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,913.33 : 197,737.53 = 65,401.80 : x
  2. Step 2: Convert to fraction form
    131,913.33/197,737.53 = 65,401.80/x
  3. Step 3: Cross multiply
    131,913.33x = 197,737.53 × 65,401.80
  4. Step 4: Simplify right side
    131,913.33x = 12,932,390,389.55
  5. Step 5: Solve for x
    x = 12,932,390,389.55/131,913.33
  6. Step 6: Final answer
    x = 98,037.02

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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.