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Finding the Fourth Proportional to 84,358.56, 126,547.68 and 37,605.60

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Solution

The fourth proportional to 84,358.56, 126,547.68 and 37,605.60 is: 56,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,358.56 : 126,547.68 = 37,605.60 : x
  2. Step 2: Convert to fraction form
    84,358.56/126,547.68 = 37,605.60/x
  3. Step 3: Cross multiply
    84,358.56x = 126,547.68 × 37,605.60
  4. Step 4: Simplify right side
    84,358.56x = 4,758,901,435.01
  5. Step 5: Solve for x
    x = 4,758,901,435.01/84,358.56
  6. Step 6: Final answer
    x = 56,412.79

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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.