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Finding the Fourth Proportional to 168,784.30, 253,273.65 and 63,678.70

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Solution

The fourth proportional to 168,784.30, 253,273.65 and 63,678.70 is: 95,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,784.30 : 253,273.65 = 63,678.70 : x
  2. Step 2: Convert to fraction form
    168,784.30/253,273.65 = 63,678.70/x
  3. Step 3: Cross multiply
    168,784.30x = 253,273.65 × 63,678.70
  4. Step 4: Simplify right side
    168,784.30x = 16,128,136,776.26
  5. Step 5: Solve for x
    x = 16,128,136,776.26/168,784.30
  6. Step 6: Final answer
    x = 95,554.72

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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.