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Finding the Fourth Proportional to 577,663.19, 866,161.25 and 178,196.70

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Solution

The fourth proportional to 577,663.19, 866,161.25 and 178,196.70 is: 267,192.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,663.19 : 866,161.25 = 178,196.70 : x
  2. Step 2: Convert to fraction form
    577,663.19/866,161.25 = 178,196.70/x
  3. Step 3: Cross multiply
    577,663.19x = 866,161.25 × 178,196.70
  4. Step 4: Simplify right side
    577,663.19x = 154,347,076,863.37
  5. Step 5: Solve for x
    x = 154,347,076,863.37/577,663.19
  6. Step 6: Final answer
    x = 267,192.16

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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.