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Finding the Fourth Proportional to 110,118.61, 151,993.70 and 64,811.13

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Solution

The fourth proportional to 110,118.61, 151,993.70 and 64,811.13 is: 89,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,118.61 : 151,993.70 = 64,811.13 : x
  2. Step 2: Convert to fraction form
    110,118.61/151,993.70 = 64,811.13/x
  3. Step 3: Cross multiply
    110,118.61x = 151,993.70 × 64,811.13
  4. Step 4: Simplify right side
    110,118.61x = 9,850,883,449.88
  5. Step 5: Solve for x
    x = 9,850,883,449.88/110,118.61
  6. Step 6: Final answer
    x = 89,457.03

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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.