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Finding the Fourth Proportional to 84,674.74, 126,986.18 and 58,547.38

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Solution

The fourth proportional to 84,674.74, 126,986.18 and 58,547.38 is: 87,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,674.74 : 126,986.18 = 58,547.38 : x
  2. Step 2: Convert to fraction form
    84,674.74/126,986.18 = 58,547.38/x
  3. Step 3: Cross multiply
    84,674.74x = 126,986.18 × 58,547.38
  4. Step 4: Simplify right side
    84,674.74x = 7,434,708,135.21
  5. Step 5: Solve for x
    x = 7,434,708,135.21/84,674.74
  6. Step 6: Final answer
    x = 87,803.14

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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.