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Finding the Fourth Proportional to 253,779.68, 350,200.87 and 139,035.49

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Solution

The fourth proportional to 253,779.68, 350,200.87 and 139,035.49 is: 191,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,779.68 : 350,200.87 = 139,035.49 : x
  2. Step 2: Convert to fraction form
    253,779.68/350,200.87 = 139,035.49/x
  3. Step 3: Cross multiply
    253,779.68x = 350,200.87 × 139,035.49
  4. Step 4: Simplify right side
    253,779.68x = 48,690,348,335.79
  5. Step 5: Solve for x
    x = 48,690,348,335.79/253,779.68
  6. Step 6: Final answer
    x = 191,860.70

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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.