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Finding the Fourth Proportional to 68,285.70, 102,428.55 and 44,666.10

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Solution

The fourth proportional to 68,285.70, 102,428.55 and 44,666.10 is: 66,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,285.70 : 102,428.55 = 44,666.10 : x
  2. Step 2: Convert to fraction form
    68,285.70/102,428.55 = 44,666.10/x
  3. Step 3: Cross multiply
    68,285.70x = 102,428.55 × 44,666.10
  4. Step 4: Simplify right side
    68,285.70x = 4,575,083,857.16
  5. Step 5: Solve for x
    x = 4,575,083,857.16/68,285.70
  6. Step 6: Final answer
    x = 66,999.15

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1.5x scale

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.