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Finding the Fourth Proportional to 176,981.76, 265,317.12 and 66,147.84

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Solution

The fourth proportional to 176,981.76, 265,317.12 and 66,147.84 is: 99,163.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,981.76 : 265,317.12 = 66,147.84 : x
  2. Step 2: Convert to fraction form
    176,981.76/265,317.12 = 66,147.84/x
  3. Step 3: Cross multiply
    176,981.76x = 265,317.12 × 66,147.84
  4. Step 4: Simplify right side
    176,981.76x = 17,550,154,403.02
  5. Step 5: Solve for x
    x = 17,550,154,403.02/176,981.76
  6. Step 6: Final answer
    x = 99,163.63

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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.