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Finding the Fourth Proportional to 70,219.51, 96,953.66 and 43,398.79

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Solution

The fourth proportional to 70,219.51, 96,953.66 and 43,398.79 is: 59,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,219.51 : 96,953.66 = 43,398.79 : x
  2. Step 2: Convert to fraction form
    70,219.51/96,953.66 = 43,398.79/x
  3. Step 3: Cross multiply
    70,219.51x = 96,953.66 × 43,398.79
  4. Step 4: Simplify right side
    70,219.51x = 4,207,671,233.44
  5. Step 5: Solve for x
    x = 4,207,671,233.44/70,219.51
  6. Step 6: Final answer
    x = 59,921.69

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1.5x scale

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.