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Finding the Fourth Proportional to 64,277.30, 88,707.78 and 47,358.84

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Solution

The fourth proportional to 64,277.30, 88,707.78 and 47,358.84 is: 65,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,277.30 : 88,707.78 = 47,358.84 : x
  2. Step 2: Convert to fraction form
    64,277.30/88,707.78 = 47,358.84/x
  3. Step 3: Cross multiply
    64,277.30x = 88,707.78 × 47,358.84
  4. Step 4: Simplify right side
    64,277.30x = 4,201,097,559.78
  5. Step 5: Solve for x
    x = 4,201,097,559.78/64,277.30
  6. Step 6: Final answer
    x = 65,358.96

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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.