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Finding the Fourth Proportional to 312,732.95, 469,128.63 and 88,093.01

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Solution

The fourth proportional to 312,732.95, 469,128.63 and 88,093.01 is: 132,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,732.95 : 469,128.63 = 88,093.01 : x
  2. Step 2: Convert to fraction form
    312,732.95/469,128.63 = 88,093.01/x
  3. Step 3: Cross multiply
    312,732.95x = 469,128.63 × 88,093.01
  4. Step 4: Simplify right side
    312,732.95x = 41,326,950,748.23
  5. Step 5: Solve for x
    x = 41,326,950,748.23/312,732.95
  6. Step 6: Final answer
    x = 132,147.74

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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.