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Finding the Fourth Proportional to 70,618.47, 105,927.54 and 44,341.65

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Solution

The fourth proportional to 70,618.47, 105,927.54 and 44,341.65 is: 66,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,618.47 : 105,927.54 = 44,341.65 : x
  2. Step 2: Convert to fraction form
    70,618.47/105,927.54 = 44,341.65/x
  3. Step 3: Cross multiply
    70,618.47x = 105,927.54 × 44,341.65
  4. Step 4: Simplify right side
    70,618.47x = 4,697,001,904.04
  5. Step 5: Solve for x
    x = 4,697,001,904.04/70,618.47
  6. Step 6: Final answer
    x = 66,512.37

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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.