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Finding the Fourth Proportional to 187,063.26, 257,943.03 and 126,528.93

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Solution

The fourth proportional to 187,063.26, 257,943.03 and 126,528.93 is: 174,471.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,063.26 : 257,943.03 = 126,528.93 : x
  2. Step 2: Convert to fraction form
    187,063.26/257,943.03 = 126,528.93/x
  3. Step 3: Cross multiply
    187,063.26x = 257,943.03 × 126,528.93
  4. Step 4: Simplify right side
    187,063.26x = 32,637,255,586.86
  5. Step 5: Solve for x
    x = 32,637,255,586.86/187,063.26
  6. Step 6: Final answer
    x = 174,471.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.