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Finding the Fourth Proportional to 180,291.42, 248,800.59 and 99,724.86

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Solution

The fourth proportional to 180,291.42, 248,800.59 and 99,724.86 is: 137,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,291.42 : 248,800.59 = 99,724.86 : x
  2. Step 2: Convert to fraction form
    180,291.42/248,800.59 = 99,724.86/x
  3. Step 3: Cross multiply
    180,291.42x = 248,800.59 × 99,724.86
  4. Step 4: Simplify right side
    180,291.42x = 24,811,604,005.67
  5. Step 5: Solve for x
    x = 24,811,604,005.67/180,291.42
  6. Step 6: Final answer
    x = 137,619.44

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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.