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Finding the Fourth Proportional to 191,762.97, 287,685.98 and 73,434.32

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Solution

The fourth proportional to 191,762.97, 287,685.98 and 73,434.32 is: 110,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,762.97 : 287,685.98 = 73,434.32 : x
  2. Step 2: Convert to fraction form
    191,762.97/287,685.98 = 73,434.32/x
  3. Step 3: Cross multiply
    191,762.97x = 287,685.98 × 73,434.32
  4. Step 4: Simplify right side
    191,762.97x = 21,126,024,314.83
  5. Step 5: Solve for x
    x = 21,126,024,314.83/191,762.97
  6. Step 6: Final answer
    x = 110,167.38

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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.