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Finding the Fourth Proportional to 354,302.16, 531,451.80 and 88,057.68

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Solution

The fourth proportional to 354,302.16, 531,451.80 and 88,057.68 is: 132,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,302.16 : 531,451.80 = 88,057.68 : x
  2. Step 2: Convert to fraction form
    354,302.16/531,451.80 = 88,057.68/x
  3. Step 3: Cross multiply
    354,302.16x = 531,451.80 × 88,057.68
  4. Step 4: Simplify right side
    354,302.16x = 46,798,412,539.82
  5. Step 5: Solve for x
    x = 46,798,412,539.82/354,302.16
  6. Step 6: Final answer
    x = 132,086.16

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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.