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Finding the Fourth Proportional to 180,079.88, 248,509.22 and 99,507.42

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Solution

The fourth proportional to 180,079.88, 248,509.22 and 99,507.42 is: 137,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,079.88 : 248,509.22 = 99,507.42 : x
  2. Step 2: Convert to fraction form
    180,079.88/248,509.22 = 99,507.42/x
  3. Step 3: Cross multiply
    180,079.88x = 248,509.22 × 99,507.42
  4. Step 4: Simplify right side
    180,079.88x = 24,728,510,830.88
  5. Step 5: Solve for x
    x = 24,728,510,830.88/180,079.88
  6. Step 6: Final answer
    x = 137,319.68

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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.