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Finding the Fourth Proportional to 354,029.13, 530,928.86 and 117,308.25

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Solution

The fourth proportional to 354,029.13, 530,928.86 and 117,308.25 is: 175,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,029.13 : 530,928.86 = 117,308.25 : x
  2. Step 2: Convert to fraction form
    354,029.13/530,928.86 = 117,308.25/x
  3. Step 3: Cross multiply
    354,029.13x = 530,928.86 × 117,308.25
  4. Step 4: Simplify right side
    354,029.13x = 62,282,334,854.55
  5. Step 5: Solve for x
    x = 62,282,334,854.55/354,029.13
  6. Step 6: Final answer
    x = 175,924.32

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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.