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Finding the Fourth Proportional to 64,873.14, 89,448.22 and 45,756.06

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Solution

The fourth proportional to 64,873.14, 89,448.22 and 45,756.06 is: 63,089.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,873.14 : 89,448.22 = 45,756.06 : x
  2. Step 2: Convert to fraction form
    64,873.14/89,448.22 = 45,756.06/x
  3. Step 3: Cross multiply
    64,873.14x = 89,448.22 × 45,756.06
  4. Step 4: Simplify right side
    64,873.14x = 4,092,798,121.21
  5. Step 5: Solve for x
    x = 4,092,798,121.21/64,873.14
  6. Step 6: Final answer
    x = 63,089.26

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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.