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Finding the Fourth Proportional to 347,731.60, 521,597.40 and 98,413.60

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Solution

The fourth proportional to 347,731.60, 521,597.40 and 98,413.60 is: 147,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,731.60 : 521,597.40 = 98,413.60 : x
  2. Step 2: Convert to fraction form
    347,731.60/521,597.40 = 98,413.60/x
  3. Step 3: Cross multiply
    347,731.60x = 521,597.40 × 98,413.60
  4. Step 4: Simplify right side
    347,731.60x = 51,332,277,884.64
  5. Step 5: Solve for x
    x = 51,332,277,884.64/347,731.60
  6. Step 6: Final answer
    x = 147,620.40

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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.