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Finding the Fourth Proportional to 76,328.28, 105,333 and 46,520.28

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Solution

The fourth proportional to 76,328.28, 105,333 and 46,520.28 is: 64,197.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.28 : 105,333 = 46,520.28 : x
  2. Step 2: Convert to fraction form
    76,328.28/105,333 = 46,520.28/x
  3. Step 3: Cross multiply
    76,328.28x = 105,333 × 46,520.28
  4. Step 4: Simplify right side
    76,328.28x = 4,900,120,653.24
  5. Step 5: Solve for x
    x = 4,900,120,653.24/76,328.28
  6. Step 6: Final answer
    x = 64,197.97

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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.