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Finding the Fourth Proportional to 124,292, 186,462.36 and 49,398.18

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Solution

The fourth proportional to 124,292, 186,462.36 and 49,398.18 is: 74,106.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,292 : 186,462.36 = 49,398.18 : x
  2. Step 2: Convert to fraction form
    124,292/186,462.36 = 49,398.18/x
  3. Step 3: Cross multiply
    124,292x = 186,462.36 × 49,398.18
  4. Step 4: Simplify right side
    124,292x = 9,210,901,222.50
  5. Step 5: Solve for x
    x = 9,210,901,222.50/124,292
  6. Step 6: Final answer
    x = 74,106.95

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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.