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Finding the Fourth Proportional to 110,042.60, 151,859.43 and 64,722.49

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Solution

The fourth proportional to 110,042.60, 151,859.43 and 64,722.49 is: 89,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,042.60 : 151,859.43 = 64,722.49 : x
  2. Step 2: Convert to fraction form
    110,042.60/151,859.43 = 64,722.49/x
  3. Step 3: Cross multiply
    110,042.60x = 151,859.43 × 64,722.49
  4. Step 4: Simplify right side
    110,042.60x = 9,828,720,059.93
  5. Step 5: Solve for x
    x = 9,828,720,059.93/110,042.60
  6. Step 6: Final answer
    x = 89,317.41

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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.