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Finding the Fourth Proportional to 170,452.50, 255,715.66 and 65,271.47

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Solution

The fourth proportional to 170,452.50, 255,715.66 and 65,271.47 is: 97,921.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,452.50 : 255,715.66 = 65,271.47 : x
  2. Step 2: Convert to fraction form
    170,452.50/255,715.66 = 65,271.47/x
  3. Step 3: Cross multiply
    170,452.50x = 255,715.66 × 65,271.47
  4. Step 4: Simplify right side
    170,452.50x = 16,690,936,547.40
  5. Step 5: Solve for x
    x = 16,690,936,547.40/170,452.50
  6. Step 6: Final answer
    x = 97,921.34

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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.