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Finding the Fourth Proportional to 83,919.84, 115,807.12 and 46,194.20

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Solution

The fourth proportional to 83,919.84, 115,807.12 and 46,194.20 is: 63,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,919.84 : 115,807.12 = 46,194.20 : x
  2. Step 2: Convert to fraction form
    83,919.84/115,807.12 = 46,194.20/x
  3. Step 3: Cross multiply
    83,919.84x = 115,807.12 × 46,194.20
  4. Step 4: Simplify right side
    83,919.84x = 5,349,617,262.70
  5. Step 5: Solve for x
    x = 5,349,617,262.70/83,919.84
  6. Step 6: Final answer
    x = 63,746.75

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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.