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Finding the Fourth Proportional to 170,600.31, 255,933.27 and 65,411.08

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Solution

The fourth proportional to 170,600.31, 255,933.27 and 65,411.08 is: 98,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,600.31 : 255,933.27 = 65,411.08 : x
  2. Step 2: Convert to fraction form
    170,600.31/255,933.27 = 65,411.08/x
  3. Step 3: Cross multiply
    170,600.31x = 255,933.27 × 65,411.08
  4. Step 4: Simplify right side
    170,600.31x = 16,740,871,598.63
  5. Step 5: Solve for x
    x = 16,740,871,598.63/170,600.31
  6. Step 6: Final answer
    x = 98,129.20

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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.