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Finding the Fourth Proportional to 82,001.40, 122,904.90 and 34,616.40

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Solution

The fourth proportional to 82,001.40, 122,904.90 and 34,616.40 is: 51,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,001.40 : 122,904.90 = 34,616.40 : x
  2. Step 2: Convert to fraction form
    82,001.40/122,904.90 = 34,616.40/x
  3. Step 3: Cross multiply
    82,001.40x = 122,904.90 × 34,616.40
  4. Step 4: Simplify right side
    82,001.40x = 4,254,525,180.36
  5. Step 5: Solve for x
    x = 4,254,525,180.36/82,001.40
  6. Step 6: Final answer
    x = 51,883.57

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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.