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Finding the Fourth Proportional to 103,516.67, 155,307.80 and 36,955.32

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Solution

The fourth proportional to 103,516.67, 155,307.80 and 36,955.32 is: 55,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,516.67 : 155,307.80 = 36,955.32 : x
  2. Step 2: Convert to fraction form
    103,516.67/155,307.80 = 36,955.32/x
  3. Step 3: Cross multiply
    103,516.67x = 155,307.80 × 36,955.32
  4. Step 4: Simplify right side
    103,516.67x = 5,739,449,262.72
  5. Step 5: Solve for x
    x = 5,739,449,262.72/103,516.67
  6. Step 6: Final answer
    x = 55,444.69

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1.5x scale

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.