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Finding the Fourth Proportional to 56,890.62, 85,344.84 and 46,335.24

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Solution

The fourth proportional to 56,890.62, 85,344.84 and 46,335.24 is: 69,510.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,890.62 : 85,344.84 = 46,335.24 : x
  2. Step 2: Convert to fraction form
    56,890.62/85,344.84 = 46,335.24/x
  3. Step 3: Cross multiply
    56,890.62x = 85,344.84 × 46,335.24
  4. Step 4: Simplify right side
    56,890.62x = 3,954,473,644.16
  5. Step 5: Solve for x
    x = 3,954,473,644.16/56,890.62
  6. Step 6: Final answer
    x = 69,510.12

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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.