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Finding the Fourth Proportional to 84,700.80, 116,887.29 and 46,460.70

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Solution

The fourth proportional to 84,700.80, 116,887.29 and 46,460.70 is: 64,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,700.80 : 116,887.29 = 46,460.70 : x
  2. Step 2: Convert to fraction form
    84,700.80/116,887.29 = 46,460.70/x
  3. Step 3: Cross multiply
    84,700.80x = 116,887.29 × 46,460.70
  4. Step 4: Simplify right side
    84,700.80x = 5,430,665,140.28
  5. Step 5: Solve for x
    x = 5,430,665,140.28/84,700.80
  6. Step 6: Final answer
    x = 64,115.87

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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.