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Finding the Fourth Proportional to 247,406.40, 370,947.60 and 97,556.40

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Solution

The fourth proportional to 247,406.40, 370,947.60 and 97,556.40 is: 146,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,406.40 : 370,947.60 = 97,556.40 : x
  2. Step 2: Convert to fraction form
    247,406.40/370,947.60 = 97,556.40/x
  3. Step 3: Cross multiply
    247,406.40x = 370,947.60 × 97,556.40
  4. Step 4: Simplify right side
    247,406.40x = 36,188,312,444.64
  5. Step 5: Solve for x
    x = 36,188,312,444.64/247,406.40
  6. Step 6: Final answer
    x = 146,270.72

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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.