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Finding the Fourth Proportional to 115,447.54, 159,315.96 and 64,461.08

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Solution

The fourth proportional to 115,447.54, 159,315.96 and 64,461.08 is: 88,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,447.54 : 159,315.96 = 64,461.08 : x
  2. Step 2: Convert to fraction form
    115,447.54/159,315.96 = 64,461.08/x
  3. Step 3: Cross multiply
    115,447.54x = 159,315.96 × 64,461.08
  4. Step 4: Simplify right side
    115,447.54x = 10,269,678,842.84
  5. Step 5: Solve for x
    x = 10,269,678,842.84/115,447.54
  6. Step 6: Final answer
    x = 88,955.37

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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.