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Finding the Fourth Proportional to 66,197.79, 91,350.63 and 37,898.01

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Solution

The fourth proportional to 66,197.79, 91,350.63 and 37,898.01 is: 52,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,197.79 : 91,350.63 = 37,898.01 : x
  2. Step 2: Convert to fraction form
    66,197.79/91,350.63 = 37,898.01/x
  3. Step 3: Cross multiply
    66,197.79x = 91,350.63 × 37,898.01
  4. Step 4: Simplify right side
    66,197.79x = 3,462,007,089.25
  5. Step 5: Solve for x
    x = 3,462,007,089.25/66,197.79
  6. Step 6: Final answer
    x = 52,297.93

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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.