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Finding the Fourth Proportional to 64,208.78, 88,406.84 and 58,303.88

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Solution

The fourth proportional to 64,208.78, 88,406.84 and 58,303.88 is: 80,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,208.78 : 88,406.84 = 58,303.88 : x
  2. Step 2: Convert to fraction form
    64,208.78/88,406.84 = 58,303.88/x
  3. Step 3: Cross multiply
    64,208.78x = 88,406.84 × 58,303.88
  4. Step 4: Simplify right side
    64,208.78x = 5,154,461,790.54
  5. Step 5: Solve for x
    x = 5,154,461,790.54/64,208.78
  6. Step 6: Final answer
    x = 80,276.59

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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.