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Finding the Fourth Proportional to 75,424, 104,088.36 and 41,890

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Solution

The fourth proportional to 75,424, 104,088.36 and 41,890 is: 57,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,424 : 104,088.36 = 41,890 : x
  2. Step 2: Convert to fraction form
    75,424/104,088.36 = 41,890/x
  3. Step 3: Cross multiply
    75,424x = 104,088.36 × 41,890
  4. Step 4: Simplify right side
    75,424x = 4,360,261,400.40
  5. Step 5: Solve for x
    x = 4,360,261,400.40/75,424
  6. Step 6: Final answer
    x = 57,810.00

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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.