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Finding the Fourth Proportional to 111,701, 154,147.38 and 63,970.14

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Solution

The fourth proportional to 111,701, 154,147.38 and 63,970.14 is: 88,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,701 : 154,147.38 = 63,970.14 : x
  2. Step 2: Convert to fraction form
    111,701/154,147.38 = 63,970.14/x
  3. Step 3: Cross multiply
    111,701x = 154,147.38 × 63,970.14
  4. Step 4: Simplify right side
    111,701x = 9,860,829,479.23
  5. Step 5: Solve for x
    x = 9,860,829,479.23/111,701
  6. Step 6: Final answer
    x = 88,278.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.