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Finding the Fourth Proportional to 92,810.25, 128,080.06 and 52,524

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Solution

The fourth proportional to 92,810.25, 128,080.06 and 52,524 is: 72,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,810.25 : 128,080.06 = 52,524 : x
  2. Step 2: Convert to fraction form
    92,810.25/128,080.06 = 52,524/x
  3. Step 3: Cross multiply
    92,810.25x = 128,080.06 × 52,524
  4. Step 4: Simplify right side
    92,810.25x = 6,727,276,940.13
  5. Step 5: Solve for x
    x = 6,727,276,940.13/92,810.25
  6. Step 6: Final answer
    x = 72,484.20

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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.