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Finding the Fourth Proportional to 191,839.65, 287,759.03 and 51,598.41

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Solution

The fourth proportional to 191,839.65, 287,759.03 and 51,598.41 is: 77,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,839.65 : 287,759.03 = 51,598.41 : x
  2. Step 2: Convert to fraction form
    191,839.65/287,759.03 = 51,598.41/x
  3. Step 3: Cross multiply
    191,839.65x = 287,759.03 × 51,598.41
  4. Step 4: Simplify right side
    191,839.65x = 14,847,908,153.15
  5. Step 5: Solve for x
    x = 14,847,908,153.15/191,839.65
  6. Step 6: Final answer
    x = 77,397.49

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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.