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Finding the Fourth Proportional to 242,693.70, 364,040.55 and 158,712.90

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Solution

The fourth proportional to 242,693.70, 364,040.55 and 158,712.90 is: 238,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,693.70 : 364,040.55 = 158,712.90 : x
  2. Step 2: Convert to fraction form
    242,693.70/364,040.55 = 158,712.90/x
  3. Step 3: Cross multiply
    242,693.70x = 364,040.55 × 158,712.90
  4. Step 4: Simplify right side
    242,693.70x = 57,777,931,408.10
  5. Step 5: Solve for x
    x = 57,777,931,408.10/242,693.70
  6. Step 6: Final answer
    x = 238,069.35

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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.