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Finding the Fourth Proportional to 247,703.40, 341,972.55 and 163,066.50

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Solution

The fourth proportional to 247,703.40, 341,972.55 and 163,066.50 is: 225,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,703.40 : 341,972.55 = 163,066.50 : x
  2. Step 2: Convert to fraction form
    247,703.40/341,972.55 = 163,066.50/x
  3. Step 3: Cross multiply
    247,703.40x = 341,972.55 × 163,066.50
  4. Step 4: Simplify right side
    247,703.40x = 55,764,266,824.58
  5. Step 5: Solve for x
    x = 55,764,266,824.58/247,703.40
  6. Step 6: Final answer
    x = 225,125.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.