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Finding the Fourth Proportional to 272,777.61, 376,444.77 and 151,918.88

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Solution

The fourth proportional to 272,777.61, 376,444.77 and 151,918.88 is: 209,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,777.61 : 376,444.77 = 151,918.88 : x
  2. Step 2: Convert to fraction form
    272,777.61/376,444.77 = 151,918.88/x
  3. Step 3: Cross multiply
    272,777.61x = 376,444.77 × 151,918.88
  4. Step 4: Simplify right side
    272,777.61x = 57,189,065,388.34
  5. Step 5: Solve for x
    x = 57,189,065,388.34/272,777.61
  6. Step 6: Final answer
    x = 209,654.54

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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.