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Finding the Fourth Proportional to 185,486.72, 278,623.48 and 174,688.88

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Solution

The fourth proportional to 185,486.72, 278,623.48 and 174,688.88 is: 262,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,486.72 : 278,623.48 = 174,688.88 : x
  2. Step 2: Convert to fraction form
    185,486.72/278,623.48 = 174,688.88/x
  3. Step 3: Cross multiply
    185,486.72x = 278,623.48 × 174,688.88
  4. Step 4: Simplify right side
    185,486.72x = 48,672,423,662.90
  5. Step 5: Solve for x
    x = 48,672,423,662.90/185,486.72
  6. Step 6: Final answer
    x = 262,403.82

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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.