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Finding the Fourth Proportional to 111,006, 153,188.40 and 60,705.12

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Solution

The fourth proportional to 111,006, 153,188.40 and 60,705.12 is: 83,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,006 : 153,188.40 = 60,705.12 : x
  2. Step 2: Convert to fraction form
    111,006/153,188.40 = 60,705.12/x
  3. Step 3: Cross multiply
    111,006x = 153,188.40 × 60,705.12
  4. Step 4: Simplify right side
    111,006x = 9,299,320,204.61
  5. Step 5: Solve for x
    x = 9,299,320,204.61/111,006
  6. Step 6: Final answer
    x = 83,773.13

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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.