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Finding the Fourth Proportional to 124,809.40, 187,214.90 and 49,935.80

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Solution

The fourth proportional to 124,809.40, 187,214.90 and 49,935.80 is: 74,904.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,809.40 : 187,214.90 = 49,935.80 : x
  2. Step 2: Convert to fraction form
    124,809.40/187,214.90 = 49,935.80/x
  3. Step 3: Cross multiply
    124,809.40x = 187,214.90 × 49,935.80
  4. Step 4: Simplify right side
    124,809.40x = 9,348,725,803.42
  5. Step 5: Solve for x
    x = 9,348,725,803.42/124,809.40
  6. Step 6: Final answer
    x = 74,904.02

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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.