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Finding the Fourth Proportional to 118,177.50, 177,068.88 and 83,054.28

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Solution

The fourth proportional to 118,177.50, 177,068.88 and 83,054.28 is: 124,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,177.50 : 177,068.88 = 83,054.28 : x
  2. Step 2: Convert to fraction form
    118,177.50/177,068.88 = 83,054.28/x
  3. Step 3: Cross multiply
    118,177.50x = 177,068.88 × 83,054.28
  4. Step 4: Simplify right side
    118,177.50x = 14,706,328,338.81
  5. Step 5: Solve for x
    x = 14,706,328,338.81/118,177.50
  6. Step 6: Final answer
    x = 124,442.71

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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.