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Finding the Fourth Proportional to 349,985.57, 525,061.37 and 113,327.87

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Solution

The fourth proportional to 349,985.57, 525,061.37 and 113,327.87 is: 170,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,985.57 : 525,061.37 = 113,327.87 : x
  2. Step 2: Convert to fraction form
    349,985.57/525,061.37 = 113,327.87/x
  3. Step 3: Cross multiply
    349,985.57x = 525,061.37 × 113,327.87
  4. Step 4: Simplify right side
    349,985.57x = 59,504,084,339.39
  5. Step 5: Solve for x
    x = 59,504,084,339.39/349,985.57
  6. Step 6: Final answer
    x = 170,018.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.