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Finding the Fourth Proportional to 73,690.61, 110,525.15 and 36,240.63

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Solution

The fourth proportional to 73,690.61, 110,525.15 and 36,240.63 is: 54,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,690.61 : 110,525.15 = 36,240.63 : x
  2. Step 2: Convert to fraction form
    73,690.61/110,525.15 = 36,240.63/x
  3. Step 3: Cross multiply
    73,690.61x = 110,525.15 × 36,240.63
  4. Step 4: Simplify right side
    73,690.61x = 4,005,501,066.84
  5. Step 5: Solve for x
    x = 4,005,501,066.84/73,690.61
  6. Step 6: Final answer
    x = 54,355.65

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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.