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Finding the Fourth Proportional to 82,807.76, 124,056.12 and 64,249.04

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Solution

The fourth proportional to 82,807.76, 124,056.12 and 64,249.04 is: 96,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,807.76 : 124,056.12 = 64,249.04 : x
  2. Step 2: Convert to fraction form
    82,807.76/124,056.12 = 64,249.04/x
  3. Step 3: Cross multiply
    82,807.76x = 124,056.12 × 64,249.04
  4. Step 4: Simplify right side
    82,807.76x = 7,970,486,616.12
  5. Step 5: Solve for x
    x = 7,970,486,616.12/82,807.76
  6. Step 6: Final answer
    x = 96,252.89

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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.