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Finding the Fourth Proportional to 176,091.60, 264,655.80 and 172,981.20

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Solution

The fourth proportional to 176,091.60, 264,655.80 and 172,981.20 is: 259,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,091.60 : 264,655.80 = 172,981.20 : x
  2. Step 2: Convert to fraction form
    176,091.60/264,655.80 = 172,981.20/x
  3. Step 3: Cross multiply
    176,091.60x = 264,655.80 × 172,981.20
  4. Step 4: Simplify right side
    176,091.60x = 45,780,477,870.96
  5. Step 5: Solve for x
    x = 45,780,477,870.96/176,091.60
  6. Step 6: Final answer
    x = 259,981.04

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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.