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Finding the Fourth Proportional to 132,704.93, 199,036.85 and 72,762.91

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Solution

The fourth proportional to 132,704.93, 199,036.85 and 72,762.91 is: 109,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,704.93 : 199,036.85 = 72,762.91 : x
  2. Step 2: Convert to fraction form
    132,704.93/199,036.85 = 72,762.91/x
  3. Step 3: Cross multiply
    132,704.93x = 199,036.85 × 72,762.91
  4. Step 4: Simplify right side
    132,704.93x = 14,482,499,541.83
  5. Step 5: Solve for x
    x = 14,482,499,541.83/132,704.93
  6. Step 6: Final answer
    x = 109,133.09

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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.