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Finding the Fourth Proportional to 74,678.48, 103,056.25 and 41,144.48

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Solution

The fourth proportional to 74,678.48, 103,056.25 and 41,144.48 is: 56,779.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,678.48 : 103,056.25 = 41,144.48 : x
  2. Step 2: Convert to fraction form
    74,678.48/103,056.25 = 41,144.48/x
  3. Step 3: Cross multiply
    74,678.48x = 103,056.25 × 41,144.48
  4. Step 4: Simplify right side
    74,678.48x = 4,240,195,096.00
  5. Step 5: Solve for x
    x = 4,240,195,096.00/74,678.48
  6. Step 6: Final answer
    x = 56,779.35

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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.