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Finding the Fourth Proportional to 90,894.89, 136,370.18 and 46,552.79

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Solution

The fourth proportional to 90,894.89, 136,370.18 and 46,552.79 is: 69,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,894.89 : 136,370.18 = 46,552.79 : x
  2. Step 2: Convert to fraction form
    90,894.89/136,370.18 = 46,552.79/x
  3. Step 3: Cross multiply
    90,894.89x = 136,370.18 × 46,552.79
  4. Step 4: Simplify right side
    90,894.89x = 6,348,412,809.11
  5. Step 5: Solve for x
    x = 6,348,412,809.11/90,894.89
  6. Step 6: Final answer
    x = 69,843.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.