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Finding the Fourth Proportional to 118,166.46, 177,328.47 and 61,292.79

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Solution

The fourth proportional to 118,166.46, 177,328.47 and 61,292.79 is: 91,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,166.46 : 177,328.47 = 61,292.79 : x
  2. Step 2: Convert to fraction form
    118,166.46/177,328.47 = 61,292.79/x
  3. Step 3: Cross multiply
    118,166.46x = 177,328.47 × 61,292.79
  4. Step 4: Simplify right side
    118,166.46x = 10,868,956,672.73
  5. Step 5: Solve for x
    x = 10,868,956,672.73/118,166.46
  6. Step 6: Final answer
    x = 91,980.05

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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.