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Finding the Fourth Proportional to 96,811.40, 145,217.10 and 94,219.40

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Solution

The fourth proportional to 96,811.40, 145,217.10 and 94,219.40 is: 141,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,811.40 : 145,217.10 = 94,219.40 : x
  2. Step 2: Convert to fraction form
    96,811.40/145,217.10 = 94,219.40/x
  3. Step 3: Cross multiply
    96,811.40x = 145,217.10 × 94,219.40
  4. Step 4: Simplify right side
    96,811.40x = 13,682,268,031.74
  5. Step 5: Solve for x
    x = 13,682,268,031.74/96,811.40
  6. Step 6: Final answer
    x = 141,329.10

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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.