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Finding the Fourth Proportional to 354,004.17, 530,809.40 and 117,217.68

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Solution

The fourth proportional to 354,004.17, 530,809.40 and 117,217.68 is: 175,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,004.17 : 530,809.40 = 117,217.68 : x
  2. Step 2: Convert to fraction form
    354,004.17/530,809.40 = 117,217.68/x
  3. Step 3: Cross multiply
    354,004.17x = 530,809.40 × 117,217.68
  4. Step 4: Simplify right side
    354,004.17x = 62,220,246,390.19
  5. Step 5: Solve for x
    x = 62,220,246,390.19/354,004.17
  6. Step 6: Final answer
    x = 175,761.34

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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.