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Finding the Fourth Proportional to 84,568.46, 116,568.45 and 57,335.72

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Solution

The fourth proportional to 84,568.46, 116,568.45 and 57,335.72 is: 79,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,568.46 : 116,568.45 = 57,335.72 : x
  2. Step 2: Convert to fraction form
    84,568.46/116,568.45 = 57,335.72/x
  3. Step 3: Cross multiply
    84,568.46x = 116,568.45 × 57,335.72
  4. Step 4: Simplify right side
    84,568.46x = 6,683,535,427.19
  5. Step 5: Solve for x
    x = 6,683,535,427.19/84,568.46
  6. Step 6: Final answer
    x = 79,031.07

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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.