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Finding the Fourth Proportional to 74,357.93, 102,610.90 and 40,365.10

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Solution

The fourth proportional to 74,357.93, 102,610.90 and 40,365.10 is: 55,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,357.93 : 102,610.90 = 40,365.10 : x
  2. Step 2: Convert to fraction form
    74,357.93/102,610.90 = 40,365.10/x
  3. Step 3: Cross multiply
    74,357.93x = 102,610.90 × 40,365.10
  4. Step 4: Simplify right side
    74,357.93x = 4,141,899,418.31
  5. Step 5: Solve for x
    x = 4,141,899,418.31/74,357.93
  6. Step 6: Final answer
    x = 55,702.19

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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.