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Finding the Fourth Proportional to 272,855.95, 376,552.55 and 151,997.20

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Solution

The fourth proportional to 272,855.95, 376,552.55 and 151,997.20 is: 209,762.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,855.95 : 376,552.55 = 151,997.20 : x
  2. Step 2: Convert to fraction form
    272,855.95/376,552.55 = 151,997.20/x
  3. Step 3: Cross multiply
    272,855.95x = 376,552.55 × 151,997.20
  4. Step 4: Simplify right side
    272,855.95x = 57,234,933,252.86
  5. Step 5: Solve for x
    x = 57,234,933,252.86/272,855.95
  6. Step 6: Final answer
    x = 209,762.45

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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.