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Finding the Fourth Proportional to 82,974.40, 114,504.51 and 45,248.65

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Solution

The fourth proportional to 82,974.40, 114,504.51 and 45,248.65 is: 62,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,974.40 : 114,504.51 = 45,248.65 : x
  2. Step 2: Convert to fraction form
    82,974.40/114,504.51 = 45,248.65/x
  3. Step 3: Cross multiply
    82,974.40x = 114,504.51 × 45,248.65
  4. Step 4: Simplify right side
    82,974.40x = 5,181,174,809.22
  5. Step 5: Solve for x
    x = 5,181,174,809.22/82,974.40
  6. Step 6: Final answer
    x = 62,443.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.