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Finding the Fourth Proportional to 70,456.49, 97,119.51 and 53,392.43

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Solution

The fourth proportional to 70,456.49, 97,119.51 and 53,392.43 is: 73,597.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,456.49 : 97,119.51 = 53,392.43 : x
  2. Step 2: Convert to fraction form
    70,456.49/97,119.51 = 53,392.43/x
  3. Step 3: Cross multiply
    70,456.49x = 97,119.51 × 53,392.43
  4. Step 4: Simplify right side
    70,456.49x = 5,185,446,153.71
  5. Step 5: Solve for x
    x = 5,185,446,153.71/70,456.49
  6. Step 6: Final answer
    x = 73,597.85

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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.