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Finding the Fourth Proportional to 73,570.76, 101,630.12 and 70,839.72

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Solution

The fourth proportional to 73,570.76, 101,630.12 and 70,839.72 is: 97,857.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,570.76 : 101,630.12 = 70,839.72 : x
  2. Step 2: Convert to fraction form
    73,570.76/101,630.12 = 70,839.72/x
  3. Step 3: Cross multiply
    73,570.76x = 101,630.12 × 70,839.72
  4. Step 4: Simplify right side
    73,570.76x = 7,199,449,244.37
  5. Step 5: Solve for x
    x = 7,199,449,244.37/73,570.76
  6. Step 6: Final answer
    x = 97,857.48

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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.