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Finding the Fourth Proportional to 113,415.21, 170,024.40 and 57,208.40

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Solution

The fourth proportional to 113,415.21, 170,024.40 and 57,208.40 is: 85,762.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,415.21 : 170,024.40 = 57,208.40 : x
  2. Step 2: Convert to fraction form
    113,415.21/170,024.40 = 57,208.40/x
  3. Step 3: Cross multiply
    113,415.21x = 170,024.40 × 57,208.40
  4. Step 4: Simplify right side
    113,415.21x = 9,726,823,034.84
  5. Step 5: Solve for x
    x = 9,726,823,034.84/113,415.21
  6. Step 6: Final answer
    x = 85,762.95

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1.5x scale

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.