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Finding the Fourth Proportional to 247,116, 370,677.24 and 80,904

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Solution

The fourth proportional to 247,116, 370,677.24 and 80,904 is: 121,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,116 : 370,677.24 = 80,904 : x
  2. Step 2: Convert to fraction form
    247,116/370,677.24 = 80,904/x
  3. Step 3: Cross multiply
    247,116x = 370,677.24 × 80,904
  4. Step 4: Simplify right side
    247,116x = 29,989,271,424.96
  5. Step 5: Solve for x
    x = 29,989,271,424.96/247,116
  6. Step 6: Final answer
    x = 121,357.06

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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.