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Finding the Fourth Proportional to 70,712.79, 106,080.11 and 44,038.37

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Solution

The fourth proportional to 70,712.79, 106,080.11 and 44,038.37 is: 66,064.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,712.79 : 106,080.11 = 44,038.37 : x
  2. Step 2: Convert to fraction form
    70,712.79/106,080.11 = 44,038.37/x
  3. Step 3: Cross multiply
    70,712.79x = 106,080.11 × 44,038.37
  4. Step 4: Simplify right side
    70,712.79x = 4,671,594,383.23
  5. Step 5: Solve for x
    x = 4,671,594,383.23/70,712.79
  6. Step 6: Final answer
    x = 66,064.35

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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.