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Finding the Fourth Proportional to 180,665.68, 270,900.78 and 143,465.08

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Solution

The fourth proportional to 180,665.68, 270,900.78 and 143,465.08 is: 215,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,665.68 : 270,900.78 = 143,465.08 : x
  2. Step 2: Convert to fraction form
    180,665.68/270,900.78 = 143,465.08/x
  3. Step 3: Cross multiply
    180,665.68x = 270,900.78 × 143,465.08
  4. Step 4: Simplify right side
    180,665.68x = 38,864,802,074.76
  5. Step 5: Solve for x
    x = 38,864,802,074.76/180,665.68
  6. Step 6: Final answer
    x = 215,120.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.