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Finding the Fourth Proportional to 561,186.93, 841,904.78 and 161,796.54

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Solution

The fourth proportional to 561,186.93, 841,904.78 and 161,796.54 is: 242,730.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,186.93 : 841,904.78 = 161,796.54 : x
  2. Step 2: Convert to fraction form
    561,186.93/841,904.78 = 161,796.54/x
  3. Step 3: Cross multiply
    561,186.93x = 841,904.78 × 161,796.54
  4. Step 4: Simplify right side
    561,186.93x = 136,217,280,413.46
  5. Step 5: Solve for x
    x = 136,217,280,413.46/561,186.93
  6. Step 6: Final answer
    x = 242,730.67

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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.