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Finding the Fourth Proportional to 266,642.83, 399,924.91 and 98,124.01

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Solution

The fourth proportional to 266,642.83, 399,924.91 and 98,124.01 is: 147,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,642.83 : 399,924.91 = 98,124.01 : x
  2. Step 2: Convert to fraction form
    266,642.83/399,924.91 = 98,124.01/x
  3. Step 3: Cross multiply
    266,642.83x = 399,924.91 × 98,124.01
  4. Step 4: Simplify right side
    266,642.83x = 39,242,235,868.09
  5. Step 5: Solve for x
    x = 39,242,235,868.09/266,642.83
  6. Step 6: Final answer
    x = 147,171.54

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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.