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Finding the Fourth Proportional to 176,607.56, 243,720.84 and 101,156

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Solution

The fourth proportional to 176,607.56, 243,720.84 and 101,156 is: 139,596.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,607.56 : 243,720.84 = 101,156 : x
  2. Step 2: Convert to fraction form
    176,607.56/243,720.84 = 101,156/x
  3. Step 3: Cross multiply
    176,607.56x = 243,720.84 × 101,156
  4. Step 4: Simplify right side
    176,607.56x = 24,653,825,291.04
  5. Step 5: Solve for x
    x = 24,653,825,291.04/176,607.56
  6. Step 6: Final answer
    x = 139,596.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.