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Finding the Fourth Proportional to 91,830.60, 137,681.10 and 41,934.60

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Solution

The fourth proportional to 91,830.60, 137,681.10 and 41,934.60 is: 62,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,830.60 : 137,681.10 = 41,934.60 : x
  2. Step 2: Convert to fraction form
    91,830.60/137,681.10 = 41,934.60/x
  3. Step 3: Cross multiply
    91,830.60x = 137,681.10 × 41,934.60
  4. Step 4: Simplify right side
    91,830.60x = 5,773,601,856.06
  5. Step 5: Solve for x
    x = 5,773,601,856.06/91,830.60
  6. Step 6: Final answer
    x = 62,872.31

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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.