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Finding the Fourth Proportional to 84,894.76, 117,110.50 and 57,661.16

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Solution

The fourth proportional to 84,894.76, 117,110.50 and 57,661.16 is: 79,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894.76 : 117,110.50 = 57,661.16 : x
  2. Step 2: Convert to fraction form
    84,894.76/117,110.50 = 57,661.16/x
  3. Step 3: Cross multiply
    84,894.76x = 117,110.50 × 57,661.16
  4. Step 4: Simplify right side
    84,894.76x = 6,752,727,278.18
  5. Step 5: Solve for x
    x = 6,752,727,278.18/84,894.76
  6. Step 6: Final answer
    x = 79,542.33

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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.