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Finding the Fourth Proportional to 170,283.12, 255,424.74 and 70,333.47

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Solution

The fourth proportional to 170,283.12, 255,424.74 and 70,333.47 is: 105,500.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,283.12 : 255,424.74 = 70,333.47 : x
  2. Step 2: Convert to fraction form
    170,283.12/255,424.74 = 70,333.47/x
  3. Step 3: Cross multiply
    170,283.12x = 255,424.74 × 70,333.47
  4. Step 4: Simplify right side
    170,283.12x = 17,964,908,288.05
  5. Step 5: Solve for x
    x = 17,964,908,288.05/170,283.12
  6. Step 6: Final answer
    x = 105,500.23

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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.