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Finding the Fourth Proportional to 488,555.80, 732,835.32 and 173,021.92

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Solution

The fourth proportional to 488,555.80, 732,835.32 and 173,021.92 is: 259,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,555.80 : 732,835.32 = 173,021.92 : x
  2. Step 2: Convert to fraction form
    488,555.80/732,835.32 = 173,021.92/x
  3. Step 3: Cross multiply
    488,555.80x = 732,835.32 × 173,021.92
  4. Step 4: Simplify right side
    488,555.80x = 126,796,574,110.21
  5. Step 5: Solve for x
    x = 126,796,574,110.21/488,555.80
  6. Step 6: Final answer
    x = 259,533.45

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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.