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Finding the Fourth Proportional to 104,642.66, 156,985.86 and 34,571.18

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Solution

The fourth proportional to 104,642.66, 156,985.86 and 34,571.18 is: 51,864.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,642.66 : 156,985.86 = 34,571.18 : x
  2. Step 2: Convert to fraction form
    104,642.66/156,985.86 = 34,571.18/x
  3. Step 3: Cross multiply
    104,642.66x = 156,985.86 × 34,571.18
  4. Step 4: Simplify right side
    104,642.66x = 5,427,186,423.51
  5. Step 5: Solve for x
    x = 5,427,186,423.51/104,642.66
  6. Step 6: Final answer
    x = 51,864.00

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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.