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Finding the Fourth Proportional to 90,927.17, 136,412.22 and 28,597.67

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Solution

The fourth proportional to 90,927.17, 136,412.22 and 28,597.67 is: 42,903.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,927.17 : 136,412.22 = 28,597.67 : x
  2. Step 2: Convert to fraction form
    90,927.17/136,412.22 = 28,597.67/x
  3. Step 3: Cross multiply
    90,927.17x = 136,412.22 × 28,597.67
  4. Step 4: Simplify right side
    90,927.17x = 3,901,071,651.53
  5. Step 5: Solve for x
    x = 3,901,071,651.53/90,927.17
  6. Step 6: Final answer
    x = 42,903.26

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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.