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Finding the Fourth Proportional to 207,276.78, 310,880.39 and 57,532.28

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Solution

The fourth proportional to 207,276.78, 310,880.39 and 57,532.28 is: 86,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,276.78 : 310,880.39 = 57,532.28 : x
  2. Step 2: Convert to fraction form
    207,276.78/310,880.39 = 57,532.28/x
  3. Step 3: Cross multiply
    207,276.78x = 310,880.39 × 57,532.28
  4. Step 4: Simplify right side
    207,276.78x = 17,885,657,356.33
  5. Step 5: Solve for x
    x = 17,885,657,356.33/207,276.78
  6. Step 6: Final answer
    x = 86,288.77

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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.