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Finding the Fourth Proportional to 68,083.53, 93,889.30 and 45,423.45

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Solution

The fourth proportional to 68,083.53, 93,889.30 and 45,423.45 is: 62,640.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,083.53 : 93,889.30 = 45,423.45 : x
  2. Step 2: Convert to fraction form
    68,083.53/93,889.30 = 45,423.45/x
  3. Step 3: Cross multiply
    68,083.53x = 93,889.30 × 45,423.45
  4. Step 4: Simplify right side
    68,083.53x = 4,264,775,924.09
  5. Step 5: Solve for x
    x = 4,264,775,924.09/68,083.53
  6. Step 6: Final answer
    x = 62,640.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.