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Finding the Fourth Proportional to 76,924, 115,389.51 and 23,612.10

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Solution

The fourth proportional to 76,924, 115,389.51 and 23,612.10 is: 35,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,924 : 115,389.51 = 23,612.10 : x
  2. Step 2: Convert to fraction form
    76,924/115,389.51 = 23,612.10/x
  3. Step 3: Cross multiply
    76,924x = 115,389.51 × 23,612.10
  4. Step 4: Simplify right side
    76,924x = 2,724,588,649.07
  5. Step 5: Solve for x
    x = 2,724,588,649.07/76,924
  6. Step 6: Final answer
    x = 35,419.23

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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.