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Finding the Fourth Proportional to 118,859.11, 164,024.13 and 64,410.10

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Solution

The fourth proportional to 118,859.11, 164,024.13 and 64,410.10 is: 88,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,859.11 : 164,024.13 = 64,410.10 : x
  2. Step 2: Convert to fraction form
    118,859.11/164,024.13 = 64,410.10/x
  3. Step 3: Cross multiply
    118,859.11x = 164,024.13 × 64,410.10
  4. Step 4: Simplify right side
    118,859.11x = 10,564,810,615.71
  5. Step 5: Solve for x
    x = 10,564,810,615.71/118,859.11
  6. Step 6: Final answer
    x = 88,885.16

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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.