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Finding the Fourth Proportional to 210,008.91, 289,811.11 and 114,513.55

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Solution

The fourth proportional to 210,008.91, 289,811.11 and 114,513.55 is: 158,028.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,008.91 : 289,811.11 = 114,513.55 : x
  2. Step 2: Convert to fraction form
    210,008.91/289,811.11 = 114,513.55/x
  3. Step 3: Cross multiply
    210,008.91x = 289,811.11 × 114,513.55
  4. Step 4: Simplify right side
    210,008.91x = 33,187,299,035.54
  5. Step 5: Solve for x
    x = 33,187,299,035.54/210,008.91
  6. Step 6: Final answer
    x = 158,028.05

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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.