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Finding the Fourth Proportional to 64,799.79, 97,059.03 and 31,449.77

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Solution

The fourth proportional to 64,799.79, 97,059.03 and 31,449.77 is: 47,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,799.79 : 97,059.03 = 31,449.77 : x
  2. Step 2: Convert to fraction form
    64,799.79/97,059.03 = 31,449.77/x
  3. Step 3: Cross multiply
    64,799.79x = 97,059.03 × 31,449.77
  4. Step 4: Simplify right side
    64,799.79x = 3,052,483,684.63
  5. Step 5: Solve for x
    x = 3,052,483,684.63/64,799.79
  6. Step 6: Final answer
    x = 47,106.38

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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.