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Finding the Fourth Proportional to 528,097.70, 792,340.95 and 173,123.30

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Solution

The fourth proportional to 528,097.70, 792,340.95 and 173,123.30 is: 259,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,097.70 : 792,340.95 = 173,123.30 : x
  2. Step 2: Convert to fraction form
    528,097.70/792,340.95 = 173,123.30/x
  3. Step 3: Cross multiply
    528,097.70x = 792,340.95 × 173,123.30
  4. Step 4: Simplify right side
    528,097.70x = 137,172,679,989.14
  5. Step 5: Solve for x
    x = 137,172,679,989.14/528,097.70
  6. Step 6: Final answer
    x = 259,748.68

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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.