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Finding the Fourth Proportional to 70,618.28, 105,927.48 and 49,652.10

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Solution

The fourth proportional to 70,618.28, 105,927.48 and 49,652.10 is: 74,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,618.28 : 105,927.48 = 49,652.10 : x
  2. Step 2: Convert to fraction form
    70,618.28/105,927.48 = 49,652.10/x
  3. Step 3: Cross multiply
    70,618.28x = 105,927.48 × 49,652.10
  4. Step 4: Simplify right side
    70,618.28x = 5,259,521,829.71
  5. Step 5: Solve for x
    x = 5,259,521,829.71/70,618.28
  6. Step 6: Final answer
    x = 74,478.20

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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.