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Finding the Fourth Proportional to 247,155.77, 370,476.81 and 105,092.21

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Solution

The fourth proportional to 247,155.77, 370,476.81 and 105,092.21 is: 157,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,155.77 : 370,476.81 = 105,092.21 : x
  2. Step 2: Convert to fraction form
    247,155.77/370,476.81 = 105,092.21/x
  3. Step 3: Cross multiply
    247,155.77x = 370,476.81 × 105,092.21
  4. Step 4: Simplify right side
    247,155.77x = 38,934,227,642.84
  5. Step 5: Solve for x
    x = 38,934,227,642.84/247,155.77
  6. Step 6: Final answer
    x = 157,529.11

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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.