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Finding the Fourth Proportional to 118,682.63, 163,782.24 and 64,967.68

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Solution

The fourth proportional to 118,682.63, 163,782.24 and 64,967.68 is: 89,655.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,682.63 : 163,782.24 = 64,967.68 : x
  2. Step 2: Convert to fraction form
    118,682.63/163,782.24 = 64,967.68/x
  3. Step 3: Cross multiply
    118,682.63x = 163,782.24 × 64,967.68
  4. Step 4: Simplify right side
    118,682.63x = 10,640,551,833.16
  5. Step 5: Solve for x
    x = 10,640,551,833.16/118,682.63
  6. Step 6: Final answer
    x = 89,655.51

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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.