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Finding the Fourth Proportional to 70,497.60, 105,726.24 and 50,717.76

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Solution

The fourth proportional to 70,497.60, 105,726.24 and 50,717.76 is: 76,062.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.60 : 105,726.24 = 50,717.76 : x
  2. Step 2: Convert to fraction form
    70,497.60/105,726.24 = 50,717.76/x
  3. Step 3: Cross multiply
    70,497.60x = 105,726.24 × 50,717.76
  4. Step 4: Simplify right side
    70,497.60x = 5,362,198,066.02
  5. Step 5: Solve for x
    x = 5,362,198,066.02/70,497.60
  6. Step 6: Final answer
    x = 76,062.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.