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Finding the Fourth Proportional to 254,191.16, 350,791.02 and 139,475

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Solution

The fourth proportional to 254,191.16, 350,791.02 and 139,475 is: 192,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,191.16 : 350,791.02 = 139,475 : x
  2. Step 2: Convert to fraction form
    254,191.16/350,791.02 = 139,475/x
  3. Step 3: Cross multiply
    254,191.16x = 350,791.02 × 139,475
  4. Step 4: Simplify right side
    254,191.16x = 48,926,577,514.50
  5. Step 5: Solve for x
    x = 48,926,577,514.50/254,191.16
  6. Step 6: Final answer
    x = 192,479.46

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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.