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Finding the Fourth Proportional to 247,384.60, 341,427.40 and 156,749.00

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Solution

The fourth proportional to 247,384.60, 341,427.40 and 156,749.00 is: 216,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,384.60 : 341,427.40 = 156,749.00 : x
  2. Step 2: Convert to fraction form
    247,384.60/341,427.40 = 156,749.00/x
  3. Step 3: Cross multiply
    247,384.60x = 341,427.40 × 156,749.00
  4. Step 4: Simplify right side
    247,384.60x = 53,518,401,423.59
  5. Step 5: Solve for x
    x = 53,518,401,423.59/247,384.60
  6. Step 6: Final answer
    x = 216,336.84

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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.