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Finding the Fourth Proportional to 180,364.46, 248,910.30 and 99,790.68

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Solution

The fourth proportional to 180,364.46, 248,910.30 and 99,790.68 is: 137,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,364.46 : 248,910.30 = 99,790.68 : x
  2. Step 2: Convert to fraction form
    180,364.46/248,910.30 = 99,790.68/x
  3. Step 3: Cross multiply
    180,364.46x = 248,910.30 × 99,790.68
  4. Step 4: Simplify right side
    180,364.46x = 24,838,927,597.05
  5. Step 5: Solve for x
    x = 24,838,927,597.05/180,364.46
  6. Step 6: Final answer
    x = 137,715.20

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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.