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Finding the Fourth Proportional to 246,398.81, 369,643.80 and 77,961.53

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Solution

The fourth proportional to 246,398.81, 369,643.80 and 77,961.53 is: 116,956.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,398.81 : 369,643.80 = 77,961.53 : x
  2. Step 2: Convert to fraction form
    246,398.81/369,643.80 = 77,961.53/x
  3. Step 3: Cross multiply
    246,398.81x = 369,643.80 × 77,961.53
  4. Step 4: Simplify right side
    246,398.81x = 28,817,996,737.32
  5. Step 5: Solve for x
    x = 28,817,996,737.32/246,398.81
  6. Step 6: Final answer
    x = 116,956.72

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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.