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Finding the Fourth Proportional to 117,820.87, 162,593.51 and 64,106.28

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Solution

The fourth proportional to 117,820.87, 162,593.51 and 64,106.28 is: 88,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,820.87 : 162,593.51 = 64,106.28 : x
  2. Step 2: Convert to fraction form
    117,820.87/162,593.51 = 64,106.28/x
  3. Step 3: Cross multiply
    117,820.87x = 162,593.51 × 64,106.28
  4. Step 4: Simplify right side
    117,820.87x = 10,423,264,757.71
  5. Step 5: Solve for x
    x = 10,423,264,757.71/117,820.87
  6. Step 6: Final answer
    x = 88,467.05

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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.