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Finding the Fourth Proportional to 374,413.70, 561,693.45 and 161,181.20

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Solution

The fourth proportional to 374,413.70, 561,693.45 and 161,181.20 is: 241,803.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,413.70 : 561,693.45 = 161,181.20 : x
  2. Step 2: Convert to fraction form
    374,413.70/561,693.45 = 161,181.20/x
  3. Step 3: Cross multiply
    374,413.70x = 561,693.45 × 161,181.20
  4. Step 4: Simplify right side
    374,413.70x = 90,534,424,303.14
  5. Step 5: Solve for x
    x = 90,534,424,303.14/374,413.70
  6. Step 6: Final answer
    x = 241,803.18

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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.