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Finding the Fourth Proportional to 158,323.36, 218,488.08 and 98,741.92

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Solution

The fourth proportional to 158,323.36, 218,488.08 and 98,741.92 is: 136,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,323.36 : 218,488.08 = 98,741.92 : x
  2. Step 2: Convert to fraction form
    158,323.36/218,488.08 = 98,741.92/x
  3. Step 3: Cross multiply
    158,323.36x = 218,488.08 × 98,741.92
  4. Step 4: Simplify right side
    158,323.36x = 21,573,932,516.31
  5. Step 5: Solve for x
    x = 21,573,932,516.31/158,323.36
  6. Step 6: Final answer
    x = 136,265.00

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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.