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Finding the Fourth Proportional to 191,763.07, 287,686.13 and 73,434.41

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Solution

The fourth proportional to 191,763.07, 287,686.13 and 73,434.41 is: 110,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,763.07 : 287,686.13 = 73,434.41 : x
  2. Step 2: Convert to fraction form
    191,763.07/287,686.13 = 73,434.41/x
  3. Step 3: Cross multiply
    191,763.07x = 287,686.13 × 73,434.41
  4. Step 4: Simplify right side
    191,763.07x = 21,126,062,526.26
  5. Step 5: Solve for x
    x = 21,126,062,526.26/191,763.07
  6. Step 6: Final answer
    x = 110,167.52

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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.