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Finding the Fourth Proportional to 158,585.92, 218,858.56 and 104,776.61

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Solution

The fourth proportional to 158,585.92, 218,858.56 and 104,776.61 is: 144,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,585.92 : 218,858.56 = 104,776.61 : x
  2. Step 2: Convert to fraction form
    158,585.92/218,858.56 = 104,776.61/x
  3. Step 3: Cross multiply
    158,585.92x = 218,858.56 × 104,776.61
  4. Step 4: Simplify right side
    158,585.92x = 22,931,256,630.05
  5. Step 5: Solve for x
    x = 22,931,256,630.05/158,585.92
  6. Step 6: Final answer
    x = 144,598.32

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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.