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Finding the Fourth Proportional to 144,141.44, 216,217.64 and 38,960.46

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Solution

The fourth proportional to 144,141.44, 216,217.64 and 38,960.46 is: 58,442.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,141.44 : 216,217.64 = 38,960.46 : x
  2. Step 2: Convert to fraction form
    144,141.44/216,217.64 = 38,960.46/x
  3. Step 3: Cross multiply
    144,141.44x = 216,217.64 × 38,960.46
  4. Step 4: Simplify right side
    144,141.44x = 8,423,938,714.51
  5. Step 5: Solve for x
    x = 8,423,938,714.51/144,141.44
  6. Step 6: Final answer
    x = 58,442.17

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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.