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Finding the Fourth Proportional to 102,425.40, 153,645.30 and 58,073.40

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Solution

The fourth proportional to 102,425.40, 153,645.30 and 58,073.40 is: 87,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,425.40 : 153,645.30 = 58,073.40 : x
  2. Step 2: Convert to fraction form
    102,425.40/153,645.30 = 58,073.40/x
  3. Step 3: Cross multiply
    102,425.40x = 153,645.30 × 58,073.40
  4. Step 4: Simplify right side
    102,425.40x = 8,922,704,965.02
  5. Step 5: Solve for x
    x = 8,922,704,965.02/102,425.40
  6. Step 6: Final answer
    x = 87,114.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.