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Finding the Fourth Proportional to 84,785.94, 116,980.61 and 54,588.74

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Solution

The fourth proportional to 84,785.94, 116,980.61 and 54,588.74 is: 75,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,785.94 : 116,980.61 = 54,588.74 : x
  2. Step 2: Convert to fraction form
    84,785.94/116,980.61 = 54,588.74/x
  3. Step 3: Cross multiply
    84,785.94x = 116,980.61 × 54,588.74
  4. Step 4: Simplify right side
    84,785.94x = 6,385,823,246.48
  5. Step 5: Solve for x
    x = 6,385,823,246.48/84,785.94
  6. Step 6: Final answer
    x = 75,317.01

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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.