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Finding the Fourth Proportional to 98,829.37, 136,447.37 and 64,898.07

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Solution

The fourth proportional to 98,829.37, 136,447.37 and 64,898.07 is: 89,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,829.37 : 136,447.37 = 64,898.07 : x
  2. Step 2: Convert to fraction form
    98,829.37/136,447.37 = 64,898.07/x
  3. Step 3: Cross multiply
    98,829.37x = 136,447.37 × 64,898.07
  4. Step 4: Simplify right side
    98,829.37x = 8,855,170,969.58
  5. Step 5: Solve for x
    x = 8,855,170,969.58/98,829.37
  6. Step 6: Final answer
    x = 89,600.60

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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.