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Finding the Fourth Proportional to 191,673.76, 287,500.80 and 73,336

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Solution

The fourth proportional to 191,673.76, 287,500.80 and 73,336 is: 110,000.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,673.76 : 287,500.80 = 73,336 : x
  2. Step 2: Convert to fraction form
    191,673.76/287,500.80 = 73,336/x
  3. Step 3: Cross multiply
    191,673.76x = 287,500.80 × 73,336
  4. Step 4: Simplify right side
    191,673.76x = 21,084,158,668.80
  5. Step 5: Solve for x
    x = 21,084,158,668.80/191,673.76
  6. Step 6: Final answer
    x = 110,000.24

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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.