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Finding the Fourth Proportional to 114,705.15, 158,318.40 and 63,735.39

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Solution

The fourth proportional to 114,705.15, 158,318.40 and 63,735.39 is: 87,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,705.15 : 158,318.40 = 63,735.39 : x
  2. Step 2: Convert to fraction form
    114,705.15/158,318.40 = 63,735.39/x
  3. Step 3: Cross multiply
    114,705.15x = 158,318.40 × 63,735.39
  4. Step 4: Simplify right side
    114,705.15x = 10,090,484,968.18
  5. Step 5: Solve for x
    x = 10,090,484,968.18/114,705.15
  6. Step 6: Final answer
    x = 87,968.89

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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.