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Finding the Fourth Proportional to 246,461.78, 340,114.65 and 139,066.76

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Solution

The fourth proportional to 246,461.78, 340,114.65 and 139,066.76 is: 191,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,461.78 : 340,114.65 = 139,066.76 : x
  2. Step 2: Convert to fraction form
    246,461.78/340,114.65 = 139,066.76/x
  3. Step 3: Cross multiply
    246,461.78x = 340,114.65 × 139,066.76
  4. Step 4: Simplify right side
    246,461.78x = 47,298,642,404.03
  5. Step 5: Solve for x
    x = 47,298,642,404.03/246,461.78
  6. Step 6: Final answer
    x = 191,910.66

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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.