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Finding the Fourth Proportional to 70,448.95, 97,223.51 and 41,785.61

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Solution

The fourth proportional to 70,448.95, 97,223.51 and 41,785.61 is: 57,666.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,448.95 : 97,223.51 = 41,785.61 : x
  2. Step 2: Convert to fraction form
    70,448.95/97,223.51 = 41,785.61/x
  3. Step 3: Cross multiply
    70,448.95x = 97,223.51 × 41,785.61
  4. Step 4: Simplify right side
    70,448.95x = 4,062,544,019.21
  5. Step 5: Solve for x
    x = 4,062,544,019.21/70,448.95
  6. Step 6: Final answer
    x = 57,666.50

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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.