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Finding the Fourth Proportional to 247,158.94, 341,079.78 and 133,981.96

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Solution

The fourth proportional to 247,158.94, 341,079.78 and 133,981.96 is: 184,895.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,158.94 : 341,079.78 = 133,981.96 : x
  2. Step 2: Convert to fraction form
    247,158.94/341,079.78 = 133,981.96/x
  3. Step 3: Cross multiply
    247,158.94x = 341,079.78 × 133,981.96
  4. Step 4: Simplify right side
    247,158.94x = 45,698,537,440.77
  5. Step 5: Solve for x
    x = 45,698,537,440.77/247,158.94
  6. Step 6: Final answer
    x = 184,895.34

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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.