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Finding the Fourth Proportional to 132,762.01, 199,162.66 and 42,774.56

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Solution

The fourth proportional to 132,762.01, 199,162.66 and 42,774.56 is: 64,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,762.01 : 199,162.66 = 42,774.56 : x
  2. Step 2: Convert to fraction form
    132,762.01/199,162.66 = 42,774.56/x
  3. Step 3: Cross multiply
    132,762.01x = 199,162.66 × 42,774.56
  4. Step 4: Simplify right side
    132,762.01x = 8,519,094,869.07
  5. Step 5: Solve for x
    x = 8,519,094,869.07/132,762.01
  6. Step 6: Final answer
    x = 64,168.17

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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.