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Finding the Fourth Proportional to 84,606.80, 126,823.80 and 49,528.40

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Solution

The fourth proportional to 84,606.80, 126,823.80 and 49,528.40 is: 74,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,606.80 : 126,823.80 = 49,528.40 : x
  2. Step 2: Convert to fraction form
    84,606.80/126,823.80 = 49,528.40/x
  3. Step 3: Cross multiply
    84,606.80x = 126,823.80 × 49,528.40
  4. Step 4: Simplify right side
    84,606.80x = 6,281,379,895.92
  5. Step 5: Solve for x
    x = 6,281,379,895.92/84,606.80
  6. Step 6: Final answer
    x = 74,242.02

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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.