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Finding the Fourth Proportional to 106,497.81, 146,962.04 and 61,143.89

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Solution

The fourth proportional to 106,497.81, 146,962.04 and 61,143.89 is: 84,375.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,497.81 : 146,962.04 = 61,143.89 : x
  2. Step 2: Convert to fraction form
    106,497.81/146,962.04 = 61,143.89/x
  3. Step 3: Cross multiply
    106,497.81x = 146,962.04 × 61,143.89
  4. Step 4: Simplify right side
    106,497.81x = 8,985,829,767.41
  5. Step 5: Solve for x
    x = 8,985,829,767.41/106,497.81
  6. Step 6: Final answer
    x = 84,375.72

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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.