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Finding the Fourth Proportional to 137,210.64, 205,813.56 and 37,369.20

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Solution

The fourth proportional to 137,210.64, 205,813.56 and 37,369.20 is: 56,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,210.64 : 205,813.56 = 37,369.20 : x
  2. Step 2: Convert to fraction form
    137,210.64/205,813.56 = 37,369.20/x
  3. Step 3: Cross multiply
    137,210.64x = 205,813.56 × 37,369.20
  4. Step 4: Simplify right side
    137,210.64x = 7,691,088,086.35
  5. Step 5: Solve for x
    x = 7,691,088,086.35/137,210.64
  6. Step 6: Final answer
    x = 56,053.15

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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.