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Finding the Fourth Proportional to 256,298.45, 353,614.55 and 148,847.76

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Solution

The fourth proportional to 256,298.45, 353,614.55 and 148,847.76 is: 205,365.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,298.45 : 353,614.55 = 148,847.76 : x
  2. Step 2: Convert to fraction form
    256,298.45/353,614.55 = 148,847.76/x
  3. Step 3: Cross multiply
    256,298.45x = 353,614.55 × 148,847.76
  4. Step 4: Simplify right side
    256,298.45x = 52,634,732,926.67
  5. Step 5: Solve for x
    x = 52,634,732,926.67/256,298.45
  6. Step 6: Final answer
    x = 205,365.01

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.