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Finding the Fourth Proportional to 102,492.80, 153,739.20 and 62,403.20

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Solution

The fourth proportional to 102,492.80, 153,739.20 and 62,403.20 is: 93,604.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,492.80 : 153,739.20 = 62,403.20 : x
  2. Step 2: Convert to fraction form
    102,492.80/153,739.20 = 62,403.20/x
  3. Step 3: Cross multiply
    102,492.80x = 153,739.20 × 62,403.20
  4. Step 4: Simplify right side
    102,492.80x = 9,593,818,045.44
  5. Step 5: Solve for x
    x = 9,593,818,045.44/102,492.80
  6. Step 6: Final answer
    x = 93,604.80

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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.