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Finding the Fourth Proportional to 338,263.94, 507,395.91 and 88,926.50

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Solution

The fourth proportional to 338,263.94, 507,395.91 and 88,926.50 is: 133,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,263.94 : 507,395.91 = 88,926.50 : x
  2. Step 2: Convert to fraction form
    338,263.94/507,395.91 = 88,926.50/x
  3. Step 3: Cross multiply
    338,263.94x = 507,395.91 × 88,926.50
  4. Step 4: Simplify right side
    338,263.94x = 45,120,942,390.62
  5. Step 5: Solve for x
    x = 45,120,942,390.62/338,263.94
  6. Step 6: Final answer
    x = 133,389.75

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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.