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Finding the Fourth Proportional to 104,044.16, 143,585.26 and 65,789.89

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Solution

The fourth proportional to 104,044.16, 143,585.26 and 65,789.89 is: 90,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,044.16 : 143,585.26 = 65,789.89 : x
  2. Step 2: Convert to fraction form
    104,044.16/143,585.26 = 65,789.89/x
  3. Step 3: Cross multiply
    104,044.16x = 143,585.26 × 65,789.89
  4. Step 4: Simplify right side
    104,044.16x = 9,446,457,937.58
  5. Step 5: Solve for x
    x = 9,446,457,937.58/104,044.16
  6. Step 6: Final answer
    x = 90,792.77

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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.