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Finding the Fourth Proportional to 253,937.68, 350,412 and 145,041.48

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Solution

The fourth proportional to 253,937.68, 350,412 and 145,041.48 is: 200,144.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,937.68 : 350,412 = 145,041.48 : x
  2. Step 2: Convert to fraction form
    253,937.68/350,412 = 145,041.48/x
  3. Step 3: Cross multiply
    253,937.68x = 350,412 × 145,041.48
  4. Step 4: Simplify right side
    253,937.68x = 50,824,275,089.76
  5. Step 5: Solve for x
    x = 50,824,275,089.76/253,937.68
  6. Step 6: Final answer
    x = 200,144.68

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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.