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Finding the Fourth Proportional to 291,364.75, 437,046.51 and 91,702.58

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Solution

The fourth proportional to 291,364.75, 437,046.51 and 91,702.58 is: 137,553.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,364.75 : 437,046.51 = 91,702.58 : x
  2. Step 2: Convert to fraction form
    291,364.75/437,046.51 = 91,702.58/x
  3. Step 3: Cross multiply
    291,364.75x = 437,046.51 × 91,702.58
  4. Step 4: Simplify right side
    291,364.75x = 40,078,292,547.00
  5. Step 5: Solve for x
    x = 40,078,292,547.00/291,364.75
  6. Step 6: Final answer
    x = 137,553.68

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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.