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Finding the Fourth Proportional to 207,276.20, 310,476.90 and 185,114.60

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Solution

The fourth proportional to 207,276.20, 310,476.90 and 185,114.60 is: 277,281.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,276.20 : 310,476.90 = 185,114.60 : x
  2. Step 2: Convert to fraction form
    207,276.20/310,476.90 = 185,114.60/x
  3. Step 3: Cross multiply
    207,276.20x = 310,476.90 × 185,114.60
  4. Step 4: Simplify right side
    207,276.20x = 57,473,807,152.74
  5. Step 5: Solve for x
    x = 57,473,807,152.74/207,276.20
  6. Step 6: Final answer
    x = 277,281.27

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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.