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Finding the Fourth Proportional to 102,551.70, 153,827.55 and 43,367.70

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Solution

The fourth proportional to 102,551.70, 153,827.55 and 43,367.70 is: 65,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,551.70 : 153,827.55 = 43,367.70 : x
  2. Step 2: Convert to fraction form
    102,551.70/153,827.55 = 43,367.70/x
  3. Step 3: Cross multiply
    102,551.70x = 153,827.55 × 43,367.70
  4. Step 4: Simplify right side
    102,551.70x = 6,671,147,040.14
  5. Step 5: Solve for x
    x = 6,671,147,040.14/102,551.70
  6. Step 6: Final answer
    x = 65,051.55

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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.