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Finding the Fourth Proportional to 118,897.54, 164,079.95 and 67,917.02

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Solution

The fourth proportional to 118,897.54, 164,079.95 and 67,917.02 is: 93,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,897.54 : 164,079.95 = 67,917.02 : x
  2. Step 2: Convert to fraction form
    118,897.54/164,079.95 = 67,917.02/x
  3. Step 3: Cross multiply
    118,897.54x = 164,079.95 × 67,917.02
  4. Step 4: Simplify right side
    118,897.54x = 11,143,820,085.76
  5. Step 5: Solve for x
    x = 11,143,820,085.76/118,897.54
  6. Step 6: Final answer
    x = 93,726.25

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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.