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Finding the Fourth Proportional to 434,413.60, 651,231.60 and 168,085.60

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Solution

The fourth proportional to 434,413.60, 651,231.60 and 168,085.60 is: 251,977.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,413.60 : 651,231.60 = 168,085.60 : x
  2. Step 2: Convert to fraction form
    434,413.60/651,231.60 = 168,085.60/x
  3. Step 3: Cross multiply
    434,413.60x = 651,231.60 × 168,085.60
  4. Step 4: Simplify right side
    434,413.60x = 109,462,654,224.96
  5. Step 5: Solve for x
    x = 109,462,654,224.96/434,413.60
  6. Step 6: Final answer
    x = 251,977.96

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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.