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Finding the Fourth Proportional to 85,649.63, 118,182.39 and 53,795.84

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Solution

The fourth proportional to 85,649.63, 118,182.39 and 53,795.84 is: 74,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,649.63 : 118,182.39 = 53,795.84 : x
  2. Step 2: Convert to fraction form
    85,649.63/118,182.39 = 53,795.84/x
  3. Step 3: Cross multiply
    85,649.63x = 118,182.39 × 53,795.84
  4. Step 4: Simplify right side
    85,649.63x = 6,357,720,943.26
  5. Step 5: Solve for x
    x = 6,357,720,943.26/85,649.63
  6. Step 6: Final answer
    x = 74,229.40

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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.