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Finding the Fourth Proportional to 74,099.01, 111,114.90 and 31,959.18

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Solution

The fourth proportional to 74,099.01, 111,114.90 and 31,959.18 is: 47,924.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,099.01 : 111,114.90 = 31,959.18 : x
  2. Step 2: Convert to fraction form
    74,099.01/111,114.90 = 31,959.18/x
  3. Step 3: Cross multiply
    74,099.01x = 111,114.90 × 31,959.18
  4. Step 4: Simplify right side
    74,099.01x = 3,551,141,089.78
  5. Step 5: Solve for x
    x = 3,551,141,089.78/74,099.01
  6. Step 6: Final answer
    x = 47,924.27

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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.