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Finding the Fourth Proportional to 577,751.17, 866,451.79 and 156,972.37

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Solution

The fourth proportional to 577,751.17, 866,451.79 and 156,972.37 is: 235,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,751.17 : 866,451.79 = 156,972.37 : x
  2. Step 2: Convert to fraction form
    577,751.17/866,451.79 = 156,972.37/x
  3. Step 3: Cross multiply
    577,751.17x = 866,451.79 × 156,972.37
  4. Step 4: Simplify right side
    577,751.17x = 136,008,990,967.04
  5. Step 5: Solve for x
    x = 136,008,990,967.04/577,751.17
  6. Step 6: Final answer
    x = 235,411.02

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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.