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Finding the Fourth Proportional to 208,700.29, 313,047.40 and 144,599.32

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Solution

The fourth proportional to 208,700.29, 313,047.40 and 144,599.32 is: 216,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,700.29 : 313,047.40 = 144,599.32 : x
  2. Step 2: Convert to fraction form
    208,700.29/313,047.40 = 144,599.32/x
  3. Step 3: Cross multiply
    208,700.29x = 313,047.40 × 144,599.32
  4. Step 4: Simplify right side
    208,700.29x = 45,266,441,167.77
  5. Step 5: Solve for x
    x = 45,266,441,167.77/208,700.29
  6. Step 6: Final answer
    x = 216,896.88

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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.