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Finding the Fourth Proportional to 82,210.92, 123,264.54 and 45,300.84

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Solution

The fourth proportional to 82,210.92, 123,264.54 and 45,300.84 is: 67,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,210.92 : 123,264.54 = 45,300.84 : x
  2. Step 2: Convert to fraction form
    82,210.92/123,264.54 = 45,300.84/x
  3. Step 3: Cross multiply
    82,210.92x = 123,264.54 × 45,300.84
  4. Step 4: Simplify right side
    82,210.92x = 5,583,987,204.21
  5. Step 5: Solve for x
    x = 5,583,987,204.21/82,210.92
  6. Step 6: Final answer
    x = 67,922.69

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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.