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Finding the Fourth Proportional to 207,656.20, 310,828.20 and 163,041.40

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Solution

The fourth proportional to 207,656.20, 310,828.20 and 163,041.40 is: 244,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,656.20 : 310,828.20 = 163,041.40 : x
  2. Step 2: Convert to fraction form
    207,656.20/310,828.20 = 163,041.40/x
  3. Step 3: Cross multiply
    207,656.20x = 310,828.20 × 163,041.40
  4. Step 4: Simplify right side
    207,656.20x = 50,677,864,887.48
  5. Step 5: Solve for x
    x = 50,677,864,887.48/207,656.20
  6. Step 6: Final answer
    x = 244,046.96

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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.