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Finding the Fourth Proportional to 528,068.42, 791,786.26 and 168,083.76

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Solution

The fourth proportional to 528,068.42, 791,786.26 and 168,083.76 is: 252,024.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,068.42 : 791,786.26 = 168,083.76 : x
  2. Step 2: Convert to fraction form
    528,068.42/791,786.26 = 168,083.76/x
  3. Step 3: Cross multiply
    528,068.42x = 791,786.26 × 168,083.76
  4. Step 4: Simplify right side
    528,068.42x = 133,086,411,697.14
  5. Step 5: Solve for x
    x = 133,086,411,697.14/528,068.42
  6. Step 6: Final answer
    x = 252,024.94

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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.