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Finding the Fourth Proportional to 117,265.60, 175,912.80 and 38,358.40

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Solution

The fourth proportional to 117,265.60, 175,912.80 and 38,358.40 is: 57,542.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,265.60 : 175,912.80 = 38,358.40 : x
  2. Step 2: Convert to fraction form
    117,265.60/175,912.80 = 38,358.40/x
  3. Step 3: Cross multiply
    117,265.60x = 175,912.80 × 38,358.40
  4. Step 4: Simplify right side
    117,265.60x = 6,747,733,547.52
  5. Step 5: Solve for x
    x = 6,747,733,547.52/117,265.60
  6. Step 6: Final answer
    x = 57,542.31

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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.