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Finding the Fourth Proportional to 70,681.79, 106,040.12 and 35,159.96

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Solution

The fourth proportional to 70,681.79, 106,040.12 and 35,159.96 is: 52,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,681.79 : 106,040.12 = 35,159.96 : x
  2. Step 2: Convert to fraction form
    70,681.79/106,040.12 = 35,159.96/x
  3. Step 3: Cross multiply
    70,681.79x = 106,040.12 × 35,159.96
  4. Step 4: Simplify right side
    70,681.79x = 3,728,365,671.59
  5. Step 5: Solve for x
    x = 3,728,365,671.59/70,681.79
  6. Step 6: Final answer
    x = 52,748.61

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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.