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Finding the Fourth Proportional to 158,703.42, 238,056.52 and 40,374.88

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Solution

The fourth proportional to 158,703.42, 238,056.52 and 40,374.88 is: 60,562.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,703.42 : 238,056.52 = 40,374.88 : x
  2. Step 2: Convert to fraction form
    158,703.42/238,056.52 = 40,374.88/x
  3. Step 3: Cross multiply
    158,703.42x = 238,056.52 × 40,374.88
  4. Step 4: Simplify right side
    158,703.42x = 9,611,503,428.22
  5. Step 5: Solve for x
    x = 9,611,503,428.22/158,703.42
  6. Step 6: Final answer
    x = 60,562.67

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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.