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Finding the Fourth Proportional to 103,492.10, 155,238.15 and 29,620.10

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Solution

The fourth proportional to 103,492.10, 155,238.15 and 29,620.10 is: 44,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,492.10 : 155,238.15 = 29,620.10 : x
  2. Step 2: Convert to fraction form
    103,492.10/155,238.15 = 29,620.10/x
  3. Step 3: Cross multiply
    103,492.10x = 155,238.15 × 29,620.10
  4. Step 4: Simplify right side
    103,492.10x = 4,598,169,526.82
  5. Step 5: Solve for x
    x = 4,598,169,526.82/103,492.10
  6. Step 6: Final answer
    x = 44,430.15

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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.