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Finding the Fourth Proportional to 70,210.51, 96,941.24 and 43,389.79

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Solution

The fourth proportional to 70,210.51, 96,941.24 and 43,389.79 is: 59,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,210.51 : 96,941.24 = 43,389.79 : x
  2. Step 2: Convert to fraction form
    70,210.51/96,941.24 = 43,389.79/x
  3. Step 3: Cross multiply
    70,210.51x = 96,941.24 × 43,389.79
  4. Step 4: Simplify right side
    70,210.51x = 4,206,259,749.35
  5. Step 5: Solve for x
    x = 4,206,259,749.35/70,210.51
  6. Step 6: Final answer
    x = 59,909.26

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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.