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Finding the Fourth Proportional to 246,671.61, 340,406.69 and 139,242.57

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Solution

The fourth proportional to 246,671.61, 340,406.69 and 139,242.57 is: 192,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,671.61 : 340,406.69 = 139,242.57 : x
  2. Step 2: Convert to fraction form
    246,671.61/340,406.69 = 139,242.57/x
  3. Step 3: Cross multiply
    246,671.61x = 340,406.69 × 139,242.57
  4. Step 4: Simplify right side
    246,671.61x = 47,399,101,664.58
  5. Step 5: Solve for x
    x = 47,399,101,664.58/246,671.61
  6. Step 6: Final answer
    x = 192,154.67

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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.