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Finding the Fourth Proportional to 304,671.61, 420,441.68 and 168,702.61

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Solution

The fourth proportional to 304,671.61, 420,441.68 and 168,702.61 is: 232,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,671.61 : 420,441.68 = 168,702.61 : x
  2. Step 2: Convert to fraction form
    304,671.61/420,441.68 = 168,702.61/x
  3. Step 3: Cross multiply
    304,671.61x = 420,441.68 × 168,702.61
  4. Step 4: Simplify right side
    304,671.61x = 70,929,607,925.27
  5. Step 5: Solve for x
    x = 70,929,607,925.27/304,671.61
  6. Step 6: Final answer
    x = 232,806.75

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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.