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Finding the Fourth Proportional to 75,698.66, 104,459.13 and 45,485.25

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Solution

The fourth proportional to 75,698.66, 104,459.13 and 45,485.25 is: 62,766.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,698.66 : 104,459.13 = 45,485.25 : x
  2. Step 2: Convert to fraction form
    75,698.66/104,459.13 = 45,485.25/x
  3. Step 3: Cross multiply
    75,698.66x = 104,459.13 × 45,485.25
  4. Step 4: Simplify right side
    75,698.66x = 4,751,349,642.83
  5. Step 5: Solve for x
    x = 4,751,349,642.83/75,698.66
  6. Step 6: Final answer
    x = 62,766.63

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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.