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Finding the Fourth Proportional to 176,508.74, 264,771.21 and 86,632.76

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Solution

The fourth proportional to 176,508.74, 264,771.21 and 86,632.76 is: 129,953.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,508.74 : 264,771.21 = 86,632.76 : x
  2. Step 2: Convert to fraction form
    176,508.74/264,771.21 = 86,632.76/x
  3. Step 3: Cross multiply
    176,508.74x = 264,771.21 × 86,632.76
  4. Step 4: Simplify right side
    176,508.74x = 22,937,860,690.84
  5. Step 5: Solve for x
    x = 22,937,860,690.84/176,508.74
  6. Step 6: Final answer
    x = 129,953.12

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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.