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Finding the Fourth Proportional to 114,963.76, 158,631.70 and 64,653.04

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Solution

The fourth proportional to 114,963.76, 158,631.70 and 64,653.04 is: 89,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,963.76 : 158,631.70 = 64,653.04 : x
  2. Step 2: Convert to fraction form
    114,963.76/158,631.70 = 64,653.04/x
  3. Step 3: Cross multiply
    114,963.76x = 158,631.70 × 64,653.04
  4. Step 4: Simplify right side
    114,963.76x = 10,256,021,645.37
  5. Step 5: Solve for x
    x = 10,256,021,645.37/114,963.76
  6. Step 6: Final answer
    x = 89,210.91

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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.