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Finding the Fourth Proportional to 98,866.74, 148,325.39 and 28,746.05

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Solution

The fourth proportional to 98,866.74, 148,325.39 and 28,746.05 is: 43,126.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,866.74 : 148,325.39 = 28,746.05 : x
  2. Step 2: Convert to fraction form
    98,866.74/148,325.39 = 28,746.05/x
  3. Step 3: Cross multiply
    98,866.74x = 148,325.39 × 28,746.05
  4. Step 4: Simplify right side
    98,866.74x = 4,263,769,519.89
  5. Step 5: Solve for x
    x = 4,263,769,519.89/98,866.74
  6. Step 6: Final answer
    x = 43,126.43

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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.