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Finding the Fourth Proportional to 372,185.64, 558,278.73 and 91,702.89

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Solution

The fourth proportional to 372,185.64, 558,278.73 and 91,702.89 is: 137,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,185.64 : 558,278.73 = 91,702.89 : x
  2. Step 2: Convert to fraction form
    372,185.64/558,278.73 = 91,702.89/x
  3. Step 3: Cross multiply
    372,185.64x = 558,278.73 × 91,702.89
  4. Step 4: Simplify right side
    372,185.64x = 51,195,772,966.53
  5. Step 5: Solve for x
    x = 51,195,772,966.53/372,185.64
  6. Step 6: Final answer
    x = 137,554.40

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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.