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Finding the Fourth Proportional to 158,702.66, 218,736.95 and 151,228.59

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Solution

The fourth proportional to 158,702.66, 218,736.95 and 151,228.59 is: 208,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,702.66 : 218,736.95 = 151,228.59 : x
  2. Step 2: Convert to fraction form
    158,702.66/218,736.95 = 151,228.59/x
  3. Step 3: Cross multiply
    158,702.66x = 218,736.95 × 151,228.59
  4. Step 4: Simplify right side
    158,702.66x = 33,079,279,773.26
  5. Step 5: Solve for x
    x = 33,079,279,773.26/158,702.66
  6. Step 6: Final answer
    x = 208,435.58

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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.