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Finding the Fourth Proportional to 529,267.56, 793,901.97 and 145,019.69

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Solution

The fourth proportional to 529,267.56, 793,901.97 and 145,019.69 is: 217,529.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,267.56 : 793,901.97 = 145,019.69 : x
  2. Step 2: Convert to fraction form
    529,267.56/793,901.97 = 145,019.69/x
  3. Step 3: Cross multiply
    529,267.56x = 793,901.97 × 145,019.69
  4. Step 4: Simplify right side
    529,267.56x = 115,131,421,053.11
  5. Step 5: Solve for x
    x = 115,131,421,053.11/529,267.56
  6. Step 6: Final answer
    x = 217,529.72

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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.