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Finding the Fourth Proportional to 354,341.28, 531,513.84 and 88,101.80

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Solution

The fourth proportional to 354,341.28, 531,513.84 and 88,101.80 is: 132,153.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,341.28 : 531,513.84 = 88,101.80 : x
  2. Step 2: Convert to fraction form
    354,341.28/531,513.84 = 88,101.80/x
  3. Step 3: Cross multiply
    354,341.28x = 531,513.84 × 88,101.80
  4. Step 4: Simplify right side
    354,341.28x = 46,827,326,028.91
  5. Step 5: Solve for x
    x = 46,827,326,028.91/354,341.28
  6. Step 6: Final answer
    x = 132,153.18

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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.