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Finding the Fourth Proportional to 97,326.80, 145,990.20 and 73,998.80

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Solution

The fourth proportional to 97,326.80, 145,990.20 and 73,998.80 is: 110,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,326.80 : 145,990.20 = 73,998.80 : x
  2. Step 2: Convert to fraction form
    97,326.80/145,990.20 = 73,998.80/x
  3. Step 3: Cross multiply
    97,326.80x = 145,990.20 × 73,998.80
  4. Step 4: Simplify right side
    97,326.80x = 10,803,099,611.76
  5. Step 5: Solve for x
    x = 10,803,099,611.76/97,326.80
  6. Step 6: Final answer
    x = 110,998.20

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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.