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Finding the Fourth Proportional to 150,525.95, 207,743.74 and 86,862.38

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Solution

The fourth proportional to 150,525.95, 207,743.74 and 86,862.38 is: 119,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,525.95 : 207,743.74 = 86,862.38 : x
  2. Step 2: Convert to fraction form
    150,525.95/207,743.74 = 86,862.38/x
  3. Step 3: Cross multiply
    150,525.95x = 207,743.74 × 86,862.38
  4. Step 4: Simplify right side
    150,525.95x = 18,045,114,430.63
  5. Step 5: Solve for x
    x = 18,045,114,430.63/150,525.95
  6. Step 6: Final answer
    x = 119,880.43

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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.