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Finding the Fourth Proportional to 68,117.10, 93,999.69 and 37,900.86

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Solution

The fourth proportional to 68,117.10, 93,999.69 and 37,900.86 is: 52,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,117.10 : 93,999.69 = 37,900.86 : x
  2. Step 2: Convert to fraction form
    68,117.10/93,999.69 = 37,900.86/x
  3. Step 3: Cross multiply
    68,117.10x = 93,999.69 × 37,900.86
  4. Step 4: Simplify right side
    68,117.10x = 3,562,669,090.73
  5. Step 5: Solve for x
    x = 3,562,669,090.73/68,117.10
  6. Step 6: Final answer
    x = 52,302.13

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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.