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Finding the Fourth Proportional to 338,885.66, 508,332.13 and 102,230.39

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Solution

The fourth proportional to 338,885.66, 508,332.13 and 102,230.39 is: 153,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,885.66 : 508,332.13 = 102,230.39 : x
  2. Step 2: Convert to fraction form
    338,885.66/508,332.13 = 102,230.39/x
  3. Step 3: Cross multiply
    338,885.66x = 508,332.13 × 102,230.39
  4. Step 4: Simplify right side
    338,885.66x = 51,966,989,102.19
  5. Step 5: Solve for x
    x = 51,966,989,102.19/338,885.66
  6. Step 6: Final answer
    x = 153,346.68

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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.