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Finding the Fourth Proportional to 355,071.60, 531,732.60 and 236,098.80

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Solution

The fourth proportional to 355,071.60, 531,732.60 and 236,098.80 is: 353,566.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,071.60 : 531,732.60 = 236,098.80 : x
  2. Step 2: Convert to fraction form
    355,071.60/531,732.60 = 236,098.80/x
  3. Step 3: Cross multiply
    355,071.60x = 531,732.60 × 236,098.80
  4. Step 4: Simplify right side
    355,071.60x = 125,541,428,780.88
  5. Step 5: Solve for x
    x = 125,541,428,780.88/355,071.60
  6. Step 6: Final answer
    x = 353,566.52

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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.