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Finding the Fourth Proportional to 152,957.94, 211,115.72 and 84,998.29

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Solution

The fourth proportional to 152,957.94, 211,115.72 and 84,998.29 is: 117,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,957.94 : 211,115.72 = 84,998.29 : x
  2. Step 2: Convert to fraction form
    152,957.94/211,115.72 = 84,998.29/x
  3. Step 3: Cross multiply
    152,957.94x = 211,115.72 × 84,998.29
  4. Step 4: Simplify right side
    152,957.94x = 17,944,474,136.54
  5. Step 5: Solve for x
    x = 17,944,474,136.54/152,957.94
  6. Step 6: Final answer
    x = 117,316.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.