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Finding the Fourth Proportional to 147,130.90, 220,696.35 and 48,634.90

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Solution

The fourth proportional to 147,130.90, 220,696.35 and 48,634.90 is: 72,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,130.90 : 220,696.35 = 48,634.90 : x
  2. Step 2: Convert to fraction form
    147,130.90/220,696.35 = 48,634.90/x
  3. Step 3: Cross multiply
    147,130.90x = 220,696.35 × 48,634.90
  4. Step 4: Simplify right side
    147,130.90x = 10,733,544,912.62
  5. Step 5: Solve for x
    x = 10,733,544,912.62/147,130.90
  6. Step 6: Final answer
    x = 72,952.35

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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.