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Finding the Fourth Proportional to 70,058.16, 105,112.08 and 43,732.44

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Solution

The fourth proportional to 70,058.16, 105,112.08 and 43,732.44 is: 65,614.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,058.16 : 105,112.08 = 43,732.44 : x
  2. Step 2: Convert to fraction form
    70,058.16/105,112.08 = 43,732.44/x
  3. Step 3: Cross multiply
    70,058.16x = 105,112.08 × 43,732.44
  4. Step 4: Simplify right side
    70,058.16x = 4,596,807,731.88
  5. Step 5: Solve for x
    x = 4,596,807,731.88/70,058.16
  6. Step 6: Final answer
    x = 65,614.17

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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.