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Finding the Fourth Proportional to 180,426.21, 248,984.71 and 99,853.77

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Solution

The fourth proportional to 180,426.21, 248,984.71 and 99,853.77 is: 137,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,426.21 : 248,984.71 = 99,853.77 : x
  2. Step 2: Convert to fraction form
    180,426.21/248,984.71 = 99,853.77/x
  3. Step 3: Cross multiply
    180,426.21x = 248,984.71 × 99,853.77
  4. Step 4: Simplify right side
    180,426.21x = 24,862,061,965.86
  5. Step 5: Solve for x
    x = 24,862,061,965.86/180,426.21
  6. Step 6: Final answer
    x = 137,796.29

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1.5x scale

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.