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Finding the Fourth Proportional to 177,628, 266,483.88 and 57,684.56

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Solution

The fourth proportional to 177,628, 266,483.88 and 57,684.56 is: 86,540.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,628 : 266,483.88 = 57,684.56 : x
  2. Step 2: Convert to fraction form
    177,628/266,483.88 = 57,684.56/x
  3. Step 3: Cross multiply
    177,628x = 266,483.88 × 57,684.56
  4. Step 4: Simplify right side
    177,628x = 15,372,005,364.89
  5. Step 5: Solve for x
    x = 15,372,005,364.89/177,628
  6. Step 6: Final answer
    x = 86,540.44

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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.