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Finding the Fourth Proportional to 118,973.17, 164,187.57 and 65,260.45

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Solution

The fourth proportional to 118,973.17, 164,187.57 and 65,260.45 is: 90,061.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,973.17 : 164,187.57 = 65,260.45 : x
  2. Step 2: Convert to fraction form
    118,973.17/164,187.57 = 65,260.45/x
  3. Step 3: Cross multiply
    118,973.17x = 164,187.57 × 65,260.45
  4. Step 4: Simplify right side
    118,973.17x = 10,714,954,702.61
  5. Step 5: Solve for x
    x = 10,714,954,702.61/118,973.17
  6. Step 6: Final answer
    x = 90,061.94

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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.