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Finding the Fourth Proportional to 122,347.42, 168,826.24 and 70,661.32

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Solution

The fourth proportional to 122,347.42, 168,826.24 and 70,661.32 is: 97,505.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,347.42 : 168,826.24 = 70,661.32 : x
  2. Step 2: Convert to fraction form
    122,347.42/168,826.24 = 70,661.32/x
  3. Step 3: Cross multiply
    122,347.42x = 168,826.24 × 70,661.32
  4. Step 4: Simplify right side
    122,347.42x = 11,929,484,635.30
  5. Step 5: Solve for x
    x = 11,929,484,635.30/122,347.42
  6. Step 6: Final answer
    x = 97,505.00

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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.