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Finding the Fourth Proportional to 100,091.39, 149,981.56 and 63,077.63

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Solution

The fourth proportional to 100,091.39, 149,981.56 and 63,077.63 is: 94,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,091.39 : 149,981.56 = 63,077.63 : x
  2. Step 2: Convert to fraction form
    100,091.39/149,981.56 = 63,077.63/x
  3. Step 3: Cross multiply
    100,091.39x = 149,981.56 × 63,077.63
  4. Step 4: Simplify right side
    100,091.39x = 9,460,480,440.90
  5. Step 5: Solve for x
    x = 9,460,480,440.90/100,091.39
  6. Step 6: Final answer
    x = 94,518.43

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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.