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Finding the Fourth Proportional to 84,076.63, 115,960.10 and 53,864.74

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Solution

The fourth proportional to 84,076.63, 115,960.10 and 53,864.74 is: 74,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,076.63 : 115,960.10 = 53,864.74 : x
  2. Step 2: Convert to fraction form
    84,076.63/115,960.10 = 53,864.74/x
  3. Step 3: Cross multiply
    84,076.63x = 115,960.10 × 53,864.74
  4. Step 4: Simplify right side
    84,076.63x = 6,246,160,636.87
  5. Step 5: Solve for x
    x = 6,246,160,636.87/84,076.63
  6. Step 6: Final answer
    x = 74,291.29

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1.5x scale

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.