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Finding the Fourth Proportional to 111,019.08, 153,207.54 and 60,717

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Solution

The fourth proportional to 111,019.08, 153,207.54 and 60,717 is: 83,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,019.08 : 153,207.54 = 60,717 : x
  2. Step 2: Convert to fraction form
    111,019.08/153,207.54 = 60,717/x
  3. Step 3: Cross multiply
    111,019.08x = 153,207.54 × 60,717
  4. Step 4: Simplify right side
    111,019.08x = 9,302,302,206.18
  5. Step 5: Solve for x
    x = 9,302,302,206.18/111,019.08
  6. Step 6: Final answer
    x = 83,790.12

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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.