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Finding the Fourth Proportional to 97,089.84, 133,979.67 and 54,071.55

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Solution

The fourth proportional to 97,089.84, 133,979.67 and 54,071.55 is: 74,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,089.84 : 133,979.67 = 54,071.55 : x
  2. Step 2: Convert to fraction form
    97,089.84/133,979.67 = 54,071.55/x
  3. Step 3: Cross multiply
    97,089.84x = 133,979.67 × 54,071.55
  4. Step 4: Simplify right side
    97,089.84x = 7,244,488,425.39
  5. Step 5: Solve for x
    x = 7,244,488,425.39/97,089.84
  6. Step 6: Final answer
    x = 74,616.34

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1.5x scale

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.