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Finding the Fourth Proportional to 144,484.13, 216,704.32 and 39,311.30

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Solution

The fourth proportional to 144,484.13, 216,704.32 and 39,311.30 is: 58,961.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,484.13 : 216,704.32 = 39,311.30 : x
  2. Step 2: Convert to fraction form
    144,484.13/216,704.32 = 39,311.30/x
  3. Step 3: Cross multiply
    144,484.13x = 216,704.32 × 39,311.30
  4. Step 4: Simplify right side
    144,484.13x = 8,518,928,534.82
  5. Step 5: Solve for x
    x = 8,518,928,534.82/144,484.13
  6. Step 6: Final answer
    x = 58,961.00

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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.