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Finding the Fourth Proportional to 76,340.28, 105,349.62 and 46,532.28

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Solution

The fourth proportional to 76,340.28, 105,349.62 and 46,532.28 is: 64,214.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,340.28 : 105,349.62 = 46,532.28 : x
  2. Step 2: Convert to fraction form
    76,340.28/105,349.62 = 46,532.28/x
  3. Step 3: Cross multiply
    76,340.28x = 105,349.62 × 46,532.28
  4. Step 4: Simplify right side
    76,340.28x = 4,902,158,015.73
  5. Step 5: Solve for x
    x = 4,902,158,015.73/76,340.28
  6. Step 6: Final answer
    x = 64,214.57

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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.