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Finding the Fourth Proportional to 374,186.54, 561,501.30 and 137,695.34

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Solution

The fourth proportional to 374,186.54, 561,501.30 and 137,695.34 is: 206,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,186.54 : 561,501.30 = 137,695.34 : x
  2. Step 2: Convert to fraction form
    374,186.54/561,501.30 = 137,695.34/x
  3. Step 3: Cross multiply
    374,186.54x = 561,501.30 × 137,695.34
  4. Step 4: Simplify right side
    374,186.54x = 77,316,112,413.94
  5. Step 5: Solve for x
    x = 77,316,112,413.94/374,186.54
  6. Step 6: Final answer
    x = 206,624.52

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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.