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Finding the Fourth Proportional to 266,526.05, 399,519.64 and 114,822.06

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Solution

The fourth proportional to 266,526.05, 399,519.64 and 114,822.06 is: 172,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,526.05 : 399,519.64 = 114,822.06 : x
  2. Step 2: Convert to fraction form
    266,526.05/399,519.64 = 114,822.06/x
  3. Step 3: Cross multiply
    266,526.05x = 399,519.64 × 114,822.06
  4. Step 4: Simplify right side
    266,526.05x = 45,873,666,720.59
  5. Step 5: Solve for x
    x = 45,873,666,720.59/266,526.05
  6. Step 6: Final answer
    x = 172,117.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.