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Finding the Fourth Proportional to 153,375.60, 211,835.58 and 102,299.64

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Solution

The fourth proportional to 153,375.60, 211,835.58 and 102,299.64 is: 141,291.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,375.60 : 211,835.58 = 102,299.64 : x
  2. Step 2: Convert to fraction form
    153,375.60/211,835.58 = 102,299.64/x
  3. Step 3: Cross multiply
    153,375.60x = 211,835.58 × 102,299.64
  4. Step 4: Simplify right side
    153,375.60x = 21,670,703,573.19
  5. Step 5: Solve for x
    x = 21,670,703,573.19/153,375.60
  6. Step 6: Final answer
    x = 141,291.73

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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.