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Finding the Fourth Proportional to 84,392.46, 116,410.71 and 55,712.34

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Solution

The fourth proportional to 84,392.46, 116,410.71 and 55,712.34 is: 76,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,392.46 : 116,410.71 = 55,712.34 : x
  2. Step 2: Convert to fraction form
    84,392.46/116,410.71 = 55,712.34/x
  3. Step 3: Cross multiply
    84,392.46x = 116,410.71 × 55,712.34
  4. Step 4: Simplify right side
    84,392.46x = 6,485,513,055.16
  5. Step 5: Solve for x
    x = 6,485,513,055.16/84,392.46
  6. Step 6: Final answer
    x = 76,849.44

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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.