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Finding the Fourth Proportional to 172,567.64, 258,969.68 and 60,247.87

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Solution

The fourth proportional to 172,567.64, 258,969.68 and 60,247.87 is: 90,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,567.64 : 258,969.68 = 60,247.87 : x
  2. Step 2: Convert to fraction form
    172,567.64/258,969.68 = 60,247.87/x
  3. Step 3: Cross multiply
    172,567.64x = 258,969.68 × 60,247.87
  4. Step 4: Simplify right side
    172,567.64x = 15,602,371,614.58
  5. Step 5: Solve for x
    x = 15,602,371,614.58/172,567.64
  6. Step 6: Final answer
    x = 90,413.08

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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.