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Finding the Fourth Proportional to 82,473.70, 113,920.48 and 61,007.08

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Solution

The fourth proportional to 82,473.70, 113,920.48 and 61,007.08 is: 84,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,473.70 : 113,920.48 = 61,007.08 : x
  2. Step 2: Convert to fraction form
    82,473.70/113,920.48 = 61,007.08/x
  3. Step 3: Cross multiply
    82,473.70x = 113,920.48 × 61,007.08
  4. Step 4: Simplify right side
    82,473.70x = 6,949,955,837.00
  5. Step 5: Solve for x
    x = 6,949,955,837.00/82,473.70
  6. Step 6: Final answer
    x = 84,268.75

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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.