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Finding the Fourth Proportional to 145,393.14, 200,639.92 and 88,804.52

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Solution

The fourth proportional to 145,393.14, 200,639.92 and 88,804.52 is: 122,548.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,393.14 : 200,639.92 = 88,804.52 : x
  2. Step 2: Convert to fraction form
    145,393.14/200,639.92 = 88,804.52/x
  3. Step 3: Cross multiply
    145,393.14x = 200,639.92 × 88,804.52
  4. Step 4: Simplify right side
    145,393.14x = 17,817,731,788.44
  5. Step 5: Solve for x
    x = 17,817,731,788.44/145,393.14
  6. Step 6: Final answer
    x = 122,548.64

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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.