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Finding the Fourth Proportional to 76,326.50, 105,208.87 and 60,167.46

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Solution

The fourth proportional to 76,326.50, 105,208.87 and 60,167.46 is: 82,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,326.50 : 105,208.87 = 60,167.46 : x
  2. Step 2: Convert to fraction form
    76,326.50/105,208.87 = 60,167.46/x
  3. Step 3: Cross multiply
    76,326.50x = 105,208.87 × 60,167.46
  4. Step 4: Simplify right side
    76,326.50x = 6,330,150,477.37
  5. Step 5: Solve for x
    x = 6,330,150,477.37/76,326.50
  6. Step 6: Final answer
    x = 82,935.16

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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.