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Finding the Fourth Proportional to 246,534.84, 340,238.88 and 139,109.40

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Solution

The fourth proportional to 246,534.84, 340,238.88 and 139,109.40 is: 191,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,534.84 : 340,238.88 = 139,109.40 : x
  2. Step 2: Convert to fraction form
    246,534.84/340,238.88 = 139,109.40/x
  3. Step 3: Cross multiply
    246,534.84x = 340,238.88 × 139,109.40
  4. Step 4: Simplify right side
    246,534.84x = 47,330,426,453.47
  5. Step 5: Solve for x
    x = 47,330,426,453.47/246,534.84
  6. Step 6: Final answer
    x = 191,982.71

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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.