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Finding the Fourth Proportional to 66,698.88, 99,937.24 and 46,935.90

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Solution

The fourth proportional to 66,698.88, 99,937.24 and 46,935.90 is: 70,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,698.88 : 99,937.24 = 46,935.90 : x
  2. Step 2: Convert to fraction form
    66,698.88/99,937.24 = 46,935.90/x
  3. Step 3: Cross multiply
    66,698.88x = 99,937.24 × 46,935.90
  4. Step 4: Simplify right side
    66,698.88x = 4,690,644,302.92
  5. Step 5: Solve for x
    x = 4,690,644,302.92/66,698.88
  6. Step 6: Final answer
    x = 70,325.68

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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.