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Finding the Fourth Proportional to 178,775.19, 268,162.53 and 45,655.53

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Solution

The fourth proportional to 178,775.19, 268,162.53 and 45,655.53 is: 68,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,775.19 : 268,162.53 = 45,655.53 : x
  2. Step 2: Convert to fraction form
    178,775.19/268,162.53 = 45,655.53/x
  3. Step 3: Cross multiply
    178,775.19x = 268,162.53 × 45,655.53
  4. Step 4: Simplify right side
    178,775.19x = 12,243,102,433.29
  5. Step 5: Solve for x
    x = 12,243,102,433.29/178,775.19
  6. Step 6: Final answer
    x = 68,483.23

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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.