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Finding the Fourth Proportional to 144,036.30, 215,536.05 and 97,380.30

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Solution

The fourth proportional to 144,036.30, 215,536.05 and 97,380.30 is: 145,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,036.30 : 215,536.05 = 97,380.30 : x
  2. Step 2: Convert to fraction form
    144,036.30/215,536.05 = 97,380.30/x
  3. Step 3: Cross multiply
    144,036.30x = 215,536.05 × 97,380.30
  4. Step 4: Simplify right side
    144,036.30x = 20,988,965,209.82
  5. Step 5: Solve for x
    x = 20,988,965,209.82/144,036.30
  6. Step 6: Final answer
    x = 145,719.97

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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.