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Finding the Fourth Proportional to 251,777.16, 377,309.75 and 139,508.73

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Solution

The fourth proportional to 251,777.16, 377,309.75 and 139,508.73 is: 209,065.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,777.16 : 377,309.75 = 139,508.73 : x
  2. Step 2: Convert to fraction form
    251,777.16/377,309.75 = 139,508.73/x
  3. Step 3: Cross multiply
    251,777.16x = 377,309.75 × 139,508.73
  4. Step 4: Simplify right side
    251,777.16x = 52,638,003,341.57
  5. Step 5: Solve for x
    x = 52,638,003,341.57/251,777.16
  6. Step 6: Final answer
    x = 209,065.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.