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Finding the Fourth Proportional to 129,068.56, 193,612.56 and 35,573.50

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Solution

The fourth proportional to 129,068.56, 193,612.56 and 35,573.50 is: 53,362.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,068.56 : 193,612.56 = 35,573.50 : x
  2. Step 2: Convert to fraction form
    129,068.56/193,612.56 = 35,573.50/x
  3. Step 3: Cross multiply
    129,068.56x = 193,612.56 × 35,573.50
  4. Step 4: Simplify right side
    129,068.56x = 6,887,476,403.16
  5. Step 5: Solve for x
    x = 6,887,476,403.16/129,068.56
  6. Step 6: Final answer
    x = 53,362.93

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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.