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Finding the Fourth Proportional to 152,789.92, 210,846.91 and 84,802.91

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Solution

The fourth proportional to 152,789.92, 210,846.91 and 84,802.91 is: 117,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,789.92 : 210,846.91 = 84,802.91 : x
  2. Step 2: Convert to fraction form
    152,789.92/210,846.91 = 84,802.91/x
  3. Step 3: Cross multiply
    152,789.92x = 210,846.91 × 84,802.91
  4. Step 4: Simplify right side
    152,789.92x = 17,880,431,532.51
  5. Step 5: Solve for x
    x = 17,880,431,532.51/152,789.92
  6. Step 6: Final answer
    x = 117,026.25

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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.