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Finding the Fourth Proportional to 529,174.32, 793,763.64 and 129,817.68

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Solution

The fourth proportional to 529,174.32, 793,763.64 and 129,817.68 is: 194,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,174.32 : 793,763.64 = 129,817.68 : x
  2. Step 2: Convert to fraction form
    529,174.32/793,763.64 = 129,817.68/x
  3. Step 3: Cross multiply
    529,174.32x = 793,763.64 × 129,817.68
  4. Step 4: Simplify right side
    529,174.32x = 103,044,554,213.16
  5. Step 5: Solve for x
    x = 103,044,554,213.16/529,174.32
  6. Step 6: Final answer
    x = 194,727.05

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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.