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Finding the Fourth Proportional to 247,031.98, 340,903.79 and 133,854.73

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Solution

The fourth proportional to 247,031.98, 340,903.79 and 133,854.73 is: 184,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,031.98 : 340,903.79 = 133,854.73 : x
  2. Step 2: Convert to fraction form
    247,031.98/340,903.79 = 133,854.73/x
  3. Step 3: Cross multiply
    247,031.98x = 340,903.79 × 133,854.73
  4. Step 4: Simplify right side
    247,031.98x = 45,631,583,746.85
  5. Step 5: Solve for x
    x = 45,631,583,746.85/247,031.98
  6. Step 6: Final answer
    x = 184,719.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.