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Finding the Fourth Proportional to 152,469.99, 210,399.05 and 84,482.97

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Solution

The fourth proportional to 152,469.99, 210,399.05 and 84,482.97 is: 116,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,469.99 : 210,399.05 = 84,482.97 : x
  2. Step 2: Convert to fraction form
    152,469.99/210,399.05 = 84,482.97/x
  3. Step 3: Cross multiply
    152,469.99x = 210,399.05 × 84,482.97
  4. Step 4: Simplify right side
    152,469.99x = 17,775,136,206.76
  5. Step 5: Solve for x
    x = 17,775,136,206.76/152,469.99
  6. Step 6: Final answer
    x = 116,581.21

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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.