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Finding the Fourth Proportional to 82,925.80, 124,315.80 and 49,659.10

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Solution

The fourth proportional to 82,925.80, 124,315.80 and 49,659.10 is: 74,444.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,925.80 : 124,315.80 = 49,659.10 : x
  2. Step 2: Convert to fraction form
    82,925.80/124,315.80 = 49,659.10/x
  3. Step 3: Cross multiply
    82,925.80x = 124,315.80 × 49,659.10
  4. Step 4: Simplify right side
    82,925.80x = 6,173,410,743.78
  5. Step 5: Solve for x
    x = 6,173,410,743.78/82,925.80
  6. Step 6: Final answer
    x = 74,444.99

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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.