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Finding the Fourth Proportional to 180,056.40, 248,471.12 and 99,482.20

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Solution

The fourth proportional to 180,056.40, 248,471.12 and 99,482.20 is: 137,281.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,056.40 : 248,471.12 = 99,482.20 : x
  2. Step 2: Convert to fraction form
    180,056.40/248,471.12 = 99,482.20/x
  3. Step 3: Cross multiply
    180,056.40x = 248,471.12 × 99,482.20
  4. Step 4: Simplify right side
    180,056.40x = 24,718,451,914.30
  5. Step 5: Solve for x
    x = 24,718,451,914.30/180,056.40
  6. Step 6: Final answer
    x = 137,281.72

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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.