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Finding the Fourth Proportional to 457,342.73, 685,748.15 and 173,055.23

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Solution

The fourth proportional to 457,342.73, 685,748.15 and 173,055.23 is: 259,482.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,342.73 : 685,748.15 = 173,055.23 : x
  2. Step 2: Convert to fraction form
    457,342.73/685,748.15 = 173,055.23/x
  3. Step 3: Cross multiply
    457,342.73x = 685,748.15 × 173,055.23
  4. Step 4: Simplify right side
    457,342.73x = 118,672,303,826.01
  5. Step 5: Solve for x
    x = 118,672,303,826.01/457,342.73
  6. Step 6: Final answer
    x = 259,482.21

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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.