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Finding the Fourth Proportional to 235,320.88, 352,782.68 and 102,100.72

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Solution

The fourth proportional to 235,320.88, 352,782.68 and 102,100.72 is: 153,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,320.88 : 352,782.68 = 102,100.72 : x
  2. Step 2: Convert to fraction form
    235,320.88/352,782.68 = 102,100.72/x
  3. Step 3: Cross multiply
    235,320.88x = 352,782.68 × 102,100.72
  4. Step 4: Simplify right side
    235,320.88x = 36,019,365,631.53
  5. Step 5: Solve for x
    x = 36,019,365,631.53/235,320.88
  6. Step 6: Final answer
    x = 153,064.89

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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.