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Finding the Fourth Proportional to 74,189.98, 102,387.19 and 41,913.40

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Solution

The fourth proportional to 74,189.98, 102,387.19 and 41,913.40 is: 57,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,189.98 : 102,387.19 = 41,913.40 : x
  2. Step 2: Convert to fraction form
    74,189.98/102,387.19 = 41,913.40/x
  3. Step 3: Cross multiply
    74,189.98x = 102,387.19 × 41,913.40
  4. Step 4: Simplify right side
    74,189.98x = 4,291,395,159.16
  5. Step 5: Solve for x
    x = 4,291,395,159.16/74,189.98
  6. Step 6: Final answer
    x = 57,843.33

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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.