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Finding the Fourth Proportional to 207,497.80, 310,529.90 and 124,451.40

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Solution

The fourth proportional to 207,497.80, 310,529.90 and 124,451.40 is: 186,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,497.80 : 310,529.90 = 124,451.40 : x
  2. Step 2: Convert to fraction form
    207,497.80/310,529.90 = 124,451.40/x
  3. Step 3: Cross multiply
    207,497.80x = 310,529.90 × 124,451.40
  4. Step 4: Simplify right side
    207,497.80x = 38,645,880,796.86
  5. Step 5: Solve for x
    x = 38,645,880,796.86/207,497.80
  6. Step 6: Final answer
    x = 186,247.18

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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.