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Finding the Fourth Proportional to 355,881.70, 533,969.97 and 156,098.98

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Solution

The fourth proportional to 355,881.70, 533,969.97 and 156,098.98 is: 234,213.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,881.70 : 533,969.97 = 156,098.98 : x
  2. Step 2: Convert to fraction form
    355,881.70/533,969.97 = 156,098.98/x
  3. Step 3: Cross multiply
    355,881.70x = 533,969.97 × 156,098.98
  4. Step 4: Simplify right side
    355,881.70x = 83,352,167,667.63
  5. Step 5: Solve for x
    x = 83,352,167,667.63/355,881.70
  6. Step 6: Final answer
    x = 234,213.13

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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.