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Finding the Fourth Proportional to 70,290.84, 97,022.16 and 49,076.94

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Solution

The fourth proportional to 70,290.84, 97,022.16 and 49,076.94 is: 67,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,290.84 : 97,022.16 = 49,076.94 : x
  2. Step 2: Convert to fraction form
    70,290.84/97,022.16 = 49,076.94/x
  3. Step 3: Cross multiply
    70,290.84x = 97,022.16 × 49,076.94
  4. Step 4: Simplify right side
    70,290.84x = 4,761,550,724.99
  5. Step 5: Solve for x
    x = 4,761,550,724.99/70,290.84
  6. Step 6: Final answer
    x = 67,740.70

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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.