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Finding the Fourth Proportional to 316,681.33, 475,053.12 and 92,043.64

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Solution

The fourth proportional to 316,681.33, 475,053.12 and 92,043.64 is: 138,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,681.33 : 475,053.12 = 92,043.64 : x
  2. Step 2: Convert to fraction form
    316,681.33/475,053.12 = 92,043.64/x
  3. Step 3: Cross multiply
    316,681.33x = 475,053.12 × 92,043.64
  4. Step 4: Simplify right side
    316,681.33x = 43,725,618,358.16
  5. Step 5: Solve for x
    x = 43,725,618,358.16/316,681.33
  6. Step 6: Final answer
    x = 138,074.51

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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.