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Finding the Fourth Proportional to 68,412.40, 94,409.04 and 41,547.76

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Solution

The fourth proportional to 68,412.40, 94,409.04 and 41,547.76 is: 57,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,412.40 : 94,409.04 = 41,547.76 : x
  2. Step 2: Convert to fraction form
    68,412.40/94,409.04 = 41,547.76/x
  3. Step 3: Cross multiply
    68,412.40x = 94,409.04 × 41,547.76
  4. Step 4: Simplify right side
    68,412.40x = 3,922,484,135.75
  5. Step 5: Solve for x
    x = 3,922,484,135.75/68,412.40
  6. Step 6: Final answer
    x = 57,335.87

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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.