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Finding the Fourth Proportional to 57,160.03, 78,901.55 and 46,531.21

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Solution

The fourth proportional to 57,160.03, 78,901.55 and 46,531.21 is: 64,229.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,160.03 : 78,901.55 = 46,531.21 : x
  2. Step 2: Convert to fraction form
    57,160.03/78,901.55 = 46,531.21/x
  3. Step 3: Cross multiply
    57,160.03x = 78,901.55 × 46,531.21
  4. Step 4: Simplify right side
    57,160.03x = 3,671,384,592.38
  5. Step 5: Solve for x
    x = 3,671,384,592.38/57,160.03
  6. Step 6: Final answer
    x = 64,229.93

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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.