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Finding the Fourth Proportional to 93,488.58, 140,121.36 and 53,962.20

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Solution

The fourth proportional to 93,488.58, 140,121.36 and 53,962.20 is: 80,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,488.58 : 140,121.36 = 53,962.20 : x
  2. Step 2: Convert to fraction form
    93,488.58/140,121.36 = 53,962.20/x
  3. Step 3: Cross multiply
    93,488.58x = 140,121.36 × 53,962.20
  4. Step 4: Simplify right side
    93,488.58x = 7,561,256,852.59
  5. Step 5: Solve for x
    x = 7,561,256,852.59/93,488.58
  6. Step 6: Final answer
    x = 80,878.94

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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.