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Finding the Fourth Proportional to 178,775.69, 268,163.28 and 45,656.03

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Solution

The fourth proportional to 178,775.69, 268,163.28 and 45,656.03 is: 68,483.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,775.69 : 268,163.28 = 45,656.03 : x
  2. Step 2: Convert to fraction form
    178,775.69/268,163.28 = 45,656.03/x
  3. Step 3: Cross multiply
    178,775.69x = 268,163.28 × 45,656.03
  4. Step 4: Simplify right side
    178,775.69x = 12,243,270,756.58
  5. Step 5: Solve for x
    x = 12,243,270,756.58/178,775.69
  6. Step 6: Final answer
    x = 68,483.98

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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.