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Finding the Fourth Proportional to 90,168.95, 135,265.71 and 37,566.13

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Solution

The fourth proportional to 90,168.95, 135,265.71 and 37,566.13 is: 56,354.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.95 : 135,265.71 = 37,566.13 : x
  2. Step 2: Convert to fraction form
    90,168.95/135,265.71 = 37,566.13/x
  3. Step 3: Cross multiply
    90,168.95x = 135,265.71 × 37,566.13
  4. Step 4: Simplify right side
    90,168.95x = 5,081,408,570.07
  5. Step 5: Solve for x
    x = 5,081,408,570.07/90,168.95
  6. Step 6: Final answer
    x = 56,354.31

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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.