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Finding the Fourth Proportional to 114,802.57, 172,040.32 and 84,579.13

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Solution

The fourth proportional to 114,802.57, 172,040.32 and 84,579.13 is: 126,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,802.57 : 172,040.32 = 84,579.13 : x
  2. Step 2: Convert to fraction form
    114,802.57/172,040.32 = 84,579.13/x
  3. Step 3: Cross multiply
    114,802.57x = 172,040.32 × 84,579.13
  4. Step 4: Simplify right side
    114,802.57x = 14,551,020,427.43
  5. Step 5: Solve for x
    x = 14,551,020,427.43/114,802.57
  6. Step 6: Final answer
    x = 126,748.21

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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.