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Finding the Fourth Proportional to 247,369.48, 341,377.52 and 139,937.37

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Solution

The fourth proportional to 247,369.48, 341,377.52 and 139,937.37 is: 193,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,369.48 : 341,377.52 = 139,937.37 : x
  2. Step 2: Convert to fraction form
    247,369.48/341,377.52 = 139,937.37/x
  3. Step 3: Cross multiply
    247,369.48x = 341,377.52 × 139,937.37
  4. Step 4: Simplify right side
    247,369.48x = 47,771,472,325.92
  5. Step 5: Solve for x
    x = 47,771,472,325.92/247,369.48
  6. Step 6: Final answer
    x = 193,117.89

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1.5x scale

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.