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Finding the Fourth Proportional to 368,706.56, 553,140.48 and 119,413.76

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Solution

The fourth proportional to 368,706.56, 553,140.48 and 119,413.76 is: 179,146.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,706.56 : 553,140.48 = 119,413.76 : x
  2. Step 2: Convert to fraction form
    368,706.56/553,140.48 = 119,413.76/x
  3. Step 3: Cross multiply
    368,706.56x = 553,140.48 × 119,413.76
  4. Step 4: Simplify right side
    368,706.56x = 66,052,584,525.00
  5. Step 5: Solve for x
    x = 66,052,584,525.00/368,706.56
  6. Step 6: Final answer
    x = 179,146.76

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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.