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Finding the Fourth Proportional to 158,953.50, 238,430.79 and 48,145.50

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Solution

The fourth proportional to 158,953.50, 238,430.79 and 48,145.50 is: 72,218.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,953.50 : 238,430.79 = 48,145.50 : x
  2. Step 2: Convert to fraction form
    158,953.50/238,430.79 = 48,145.50/x
  3. Step 3: Cross multiply
    158,953.50x = 238,430.79 × 48,145.50
  4. Step 4: Simplify right side
    158,953.50x = 11,479,369,599.95
  5. Step 5: Solve for x
    x = 11,479,369,599.95/158,953.50
  6. Step 6: Final answer
    x = 72,218.41

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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.