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Finding the Fourth Proportional to 117,054.66, 175,530.15 and 84,084.42

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Solution

The fourth proportional to 117,054.66, 175,530.15 and 84,084.42 is: 126,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,054.66 : 175,530.15 = 84,084.42 : x
  2. Step 2: Convert to fraction form
    117,054.66/175,530.15 = 84,084.42/x
  3. Step 3: Cross multiply
    117,054.66x = 175,530.15 × 84,084.42
  4. Step 4: Simplify right side
    117,054.66x = 14,759,350,855.26
  5. Step 5: Solve for x
    x = 14,759,350,855.26/117,054.66
  6. Step 6: Final answer
    x = 126,089.39

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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.