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Finding the Fourth Proportional to 144,900.40, 217,415.40 and 51,473.20

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Solution

The fourth proportional to 144,900.40, 217,415.40 and 51,473.20 is: 77,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,900.40 : 217,415.40 = 51,473.20 : x
  2. Step 2: Convert to fraction form
    144,900.40/217,415.40 = 51,473.20/x
  3. Step 3: Cross multiply
    144,900.40x = 217,415.40 × 51,473.20
  4. Step 4: Simplify right side
    144,900.40x = 11,191,066,367.28
  5. Step 5: Solve for x
    x = 11,191,066,367.28/144,900.40
  6. Step 6: Final answer
    x = 77,232.82

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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.