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Finding the Fourth Proportional to 459,077.52, 688,655.96 and 126,653.52

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Solution

The fourth proportional to 459,077.52, 688,655.96 and 126,653.52 is: 189,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,077.52 : 688,655.96 = 126,653.52 : x
  2. Step 2: Convert to fraction form
    459,077.52/688,655.96 = 126,653.52/x
  3. Step 3: Cross multiply
    459,077.52x = 688,655.96 × 126,653.52
  4. Step 4: Simplify right side
    459,077.52x = 87,220,701,402.98
  5. Step 5: Solve for x
    x = 87,220,701,402.98/459,077.52
  6. Step 6: Final answer
    x = 189,991.23

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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.