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Finding the Fourth Proportional to 170,172, 255,260.16 and 59,364

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Solution

The fourth proportional to 170,172, 255,260.16 and 59,364 is: 89,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,172 : 255,260.16 = 59,364 : x
  2. Step 2: Convert to fraction form
    170,172/255,260.16 = 59,364/x
  3. Step 3: Cross multiply
    170,172x = 255,260.16 × 59,364
  4. Step 4: Simplify right side
    170,172x = 15,153,264,138.24
  5. Step 5: Solve for x
    x = 15,153,264,138.24/170,172
  6. Step 6: Final answer
    x = 89,046.75

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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.