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Finding the Fourth Proportional to 552,543.99, 828,953.92 and 192,720.01

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Solution

The fourth proportional to 552,543.99, 828,953.92 and 192,720.01 is: 289,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,543.99 : 828,953.92 = 192,720.01 : x
  2. Step 2: Convert to fraction form
    552,543.99/828,953.92 = 192,720.01/x
  3. Step 3: Cross multiply
    552,543.99x = 828,953.92 × 192,720.01
  4. Step 4: Simplify right side
    552,543.99x = 159,756,008,413.53
  5. Step 5: Solve for x
    x = 159,756,008,413.53/552,543.99
  6. Step 6: Final answer
    x = 289,128.13

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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.