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Finding the Fourth Proportional to 103,516.79, 155,308.01 and 36,955.45

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Solution

The fourth proportional to 103,516.79, 155,308.01 and 36,955.45 is: 55,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,516.79 : 155,308.01 = 36,955.45 : x
  2. Step 2: Convert to fraction form
    103,516.79/155,308.01 = 36,955.45/x
  3. Step 3: Cross multiply
    103,516.79x = 155,308.01 × 36,955.45
  4. Step 4: Simplify right side
    103,516.79x = 5,739,476,825.11
  5. Step 5: Solve for x
    x = 5,739,476,825.11/103,516.79
  6. Step 6: Final answer
    x = 55,444.89

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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.