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Finding the Fourth Proportional to 247,455.16, 341,495.70 and 145,461.92

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Solution

The fourth proportional to 247,455.16, 341,495.70 and 145,461.92 is: 200,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,455.16 : 341,495.70 = 145,461.92 : x
  2. Step 2: Convert to fraction form
    247,455.16/341,495.70 = 145,461.92/x
  3. Step 3: Cross multiply
    247,455.16x = 341,495.70 × 145,461.92
  4. Step 4: Simplify right side
    247,455.16x = 49,674,620,193.74
  5. Step 5: Solve for x
    x = 49,674,620,193.74/247,455.16
  6. Step 6: Final answer
    x = 200,741.90

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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.