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Finding the Fourth Proportional to 253,519.37, 349,856.13 and 151,539.89

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Solution

The fourth proportional to 253,519.37, 349,856.13 and 151,539.89 is: 209,124.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,519.37 : 349,856.13 = 151,539.89 : x
  2. Step 2: Convert to fraction form
    253,519.37/349,856.13 = 151,539.89/x
  3. Step 3: Cross multiply
    253,519.37x = 349,856.13 × 151,539.89
  4. Step 4: Simplify right side
    253,519.37x = 53,017,157,706.75
  5. Step 5: Solve for x
    x = 53,017,157,706.75/253,519.37
  6. Step 6: Final answer
    x = 209,124.69

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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.