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Finding the Fourth Proportional to 180,424.92, 248,989.50 and 99,859.08

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Solution

The fourth proportional to 180,424.92, 248,989.50 and 99,859.08 is: 137,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,424.92 : 248,989.50 = 99,859.08 : x
  2. Step 2: Convert to fraction form
    180,424.92/248,989.50 = 99,859.08/x
  3. Step 3: Cross multiply
    180,424.92x = 248,989.50 × 99,859.08
  4. Step 4: Simplify right side
    180,424.92x = 24,863,862,399.66
  5. Step 5: Solve for x
    x = 24,863,862,399.66/180,424.92
  6. Step 6: Final answer
    x = 137,807.25

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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.