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Finding the Fourth Proportional to 111,555.14, 153,892.05 and 73,860.98

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Solution

The fourth proportional to 111,555.14, 153,892.05 and 73,860.98 is: 101,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,555.14 : 153,892.05 = 73,860.98 : x
  2. Step 2: Convert to fraction form
    111,555.14/153,892.05 = 73,860.98/x
  3. Step 3: Cross multiply
    111,555.14x = 153,892.05 × 73,860.98
  4. Step 4: Simplify right side
    111,555.14x = 11,366,617,627.21
  5. Step 5: Solve for x
    x = 11,366,617,627.21/111,555.14
  6. Step 6: Final answer
    x = 101,892.37

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1.5x scale

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.