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Finding the Fourth Proportional to 85,271.63, 127,913.51 and 26,099.60

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Solution

The fourth proportional to 85,271.63, 127,913.51 and 26,099.60 is: 39,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,271.63 : 127,913.51 = 26,099.60 : x
  2. Step 2: Convert to fraction form
    85,271.63/127,913.51 = 26,099.60/x
  3. Step 3: Cross multiply
    85,271.63x = 127,913.51 × 26,099.60
  4. Step 4: Simplify right side
    85,271.63x = 3,338,490,675.53
  5. Step 5: Solve for x
    x = 3,338,490,675.53/85,271.63
  6. Step 6: Final answer
    x = 39,151.25

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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.