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Finding the Fourth Proportional to 124,486, 186,729.06 and 41,380

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Solution

The fourth proportional to 124,486, 186,729.06 and 41,380 is: 62,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,486 : 186,729.06 = 41,380 : x
  2. Step 2: Convert to fraction form
    124,486/186,729.06 = 41,380/x
  3. Step 3: Cross multiply
    124,486x = 186,729.06 × 41,380
  4. Step 4: Simplify right side
    124,486x = 7,726,848,502.80
  5. Step 5: Solve for x
    x = 7,726,848,502.80/124,486
  6. Step 6: Final answer
    x = 62,070.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.