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Finding the Fourth Proportional to 357,478.88, 536,284.24 and 117,606.28

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Solution

The fourth proportional to 357,478.88, 536,284.24 and 117,606.28 is: 176,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,478.88 : 536,284.24 = 117,606.28 : x
  2. Step 2: Convert to fraction form
    357,478.88/536,284.24 = 117,606.28/x
  3. Step 3: Cross multiply
    357,478.88x = 536,284.24 × 117,606.28
  4. Step 4: Simplify right side
    357,478.88x = 63,070,394,489.03
  5. Step 5: Solve for x
    x = 63,070,394,489.03/357,478.88
  6. Step 6: Final answer
    x = 176,431.11

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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.