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Finding the Fourth Proportional to 70,975.84, 97,953.58 and 53,039.70

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Solution

The fourth proportional to 70,975.84, 97,953.58 and 53,039.70 is: 73,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,975.84 : 97,953.58 = 53,039.70 : x
  2. Step 2: Convert to fraction form
    70,975.84/97,953.58 = 53,039.70/x
  3. Step 3: Cross multiply
    70,975.84x = 97,953.58 × 53,039.70
  4. Step 4: Simplify right side
    70,975.84x = 5,195,428,497.13
  5. Step 5: Solve for x
    x = 5,195,428,497.13/70,975.84
  6. Step 6: Final answer
    x = 73,199.96

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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.