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Finding the Fourth Proportional to 180,025.98, 248,431.05 and 99,440.49

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Solution

The fourth proportional to 180,025.98, 248,431.05 and 99,440.49 is: 137,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,025.98 : 248,431.05 = 99,440.49 : x
  2. Step 2: Convert to fraction form
    180,025.98/248,431.05 = 99,440.49/x
  3. Step 3: Cross multiply
    180,025.98x = 248,431.05 × 99,440.49
  4. Step 4: Simplify right side
    180,025.98x = 24,704,106,274.83
  5. Step 5: Solve for x
    x = 24,704,106,274.83/180,025.98
  6. Step 6: Final answer
    x = 137,225.23

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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.