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Finding the Fourth Proportional to 141,970.48, 212,745.33 and 57,628.01

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Solution

The fourth proportional to 141,970.48, 212,745.33 and 57,628.01 is: 86,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,970.48 : 212,745.33 = 57,628.01 : x
  2. Step 2: Convert to fraction form
    141,970.48/212,745.33 = 57,628.01/x
  3. Step 3: Cross multiply
    141,970.48x = 212,745.33 × 57,628.01
  4. Step 4: Simplify right side
    141,970.48x = 12,260,090,004.69
  5. Step 5: Solve for x
    x = 12,260,090,004.69/141,970.48
  6. Step 6: Final answer
    x = 86,356.61

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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.