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Finding the Fourth Proportional to 98,433.70, 147,672.15 and 48,537.70

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Solution

The fourth proportional to 98,433.70, 147,672.15 and 48,537.70 is: 72,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,433.70 : 147,672.15 = 48,537.70 : x
  2. Step 2: Convert to fraction form
    98,433.70/147,672.15 = 48,537.70/x
  3. Step 3: Cross multiply
    98,433.70x = 147,672.15 × 48,537.70
  4. Step 4: Simplify right side
    98,433.70x = 7,167,666,515.06
  5. Step 5: Solve for x
    x = 7,167,666,515.06/98,433.70
  6. Step 6: Final answer
    x = 72,817.20

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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.