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Finding the Fourth Proportional to 178,860.89, 268,290.25 and 45,740.93

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Solution

The fourth proportional to 178,860.89, 268,290.25 and 45,740.93 is: 68,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,860.89 : 268,290.25 = 45,740.93 : x
  2. Step 2: Convert to fraction form
    178,860.89/268,290.25 = 45,740.93/x
  3. Step 3: Cross multiply
    178,860.89x = 268,290.25 × 45,740.93
  4. Step 4: Simplify right side
    178,860.89x = 12,271,844,089.13
  5. Step 5: Solve for x
    x = 12,271,844,089.13/178,860.89
  6. Step 6: Final answer
    x = 68,611.11

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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.