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Finding the Fourth Proportional to 118,975.67, 164,191.02 and 65,262.95

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Solution

The fourth proportional to 118,975.67, 164,191.02 and 65,262.95 is: 90,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,975.67 : 164,191.02 = 65,262.95 : x
  2. Step 2: Convert to fraction form
    118,975.67/164,191.02 = 65,262.95/x
  3. Step 3: Cross multiply
    118,975.67x = 164,191.02 × 65,262.95
  4. Step 4: Simplify right side
    118,975.67x = 10,715,590,328.71
  5. Step 5: Solve for x
    x = 10,715,590,328.71/118,975.67
  6. Step 6: Final answer
    x = 90,065.39

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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.