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Finding the Fourth Proportional to 170,720.10, 256,080.15 and 59,912.10

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Solution

The fourth proportional to 170,720.10, 256,080.15 and 59,912.10 is: 89,868.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,720.10 : 256,080.15 = 59,912.10 : x
  2. Step 2: Convert to fraction form
    170,720.10/256,080.15 = 59,912.10/x
  3. Step 3: Cross multiply
    170,720.10x = 256,080.15 × 59,912.10
  4. Step 4: Simplify right side
    170,720.10x = 15,342,299,554.82
  5. Step 5: Solve for x
    x = 15,342,299,554.82/170,720.10
  6. Step 6: Final answer
    x = 89,868.15

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1.5x scale

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.