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Finding the Fourth Proportional to 89,132.40, 133,504.20 and 89,132.40

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Solution

The fourth proportional to 89,132.40, 133,504.20 and 89,132.40 is: 133,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,132.40 : 133,504.20 = 89,132.40 : x
  2. Step 2: Convert to fraction form
    89,132.40/133,504.20 = 89,132.40/x
  3. Step 3: Cross multiply
    89,132.40x = 133,504.20 × 89,132.40
  4. Step 4: Simplify right side
    89,132.40x = 11,899,549,756.08
  5. Step 5: Solve for x
    x = 11,899,549,756.08/89,132.40
  6. Step 6: Final answer
    x = 133,504.20

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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.