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Finding the Fourth Proportional to 316,681.08, 475,052.80 and 92,043.47

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Solution

The fourth proportional to 316,681.08, 475,052.80 and 92,043.47 is: 138,074.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,681.08 : 475,052.80 = 92,043.47 : x
  2. Step 2: Convert to fraction form
    316,681.08/475,052.80 = 92,043.47/x
  3. Step 3: Cross multiply
    316,681.08x = 475,052.80 × 92,043.47
  4. Step 4: Simplify right side
    316,681.08x = 43,725,508,145.22
  5. Step 5: Solve for x
    x = 43,725,508,145.22/316,681.08
  6. Step 6: Final answer
    x = 138,074.27

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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.