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Finding the Fourth Proportional to 70,898.53, 97,842.03 and 39,069.48

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Solution

The fourth proportional to 70,898.53, 97,842.03 and 39,069.48 is: 53,917.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,898.53 : 97,842.03 = 39,069.48 : x
  2. Step 2: Convert to fraction form
    70,898.53/97,842.03 = 39,069.48/x
  3. Step 3: Cross multiply
    70,898.53x = 97,842.03 × 39,069.48
  4. Step 4: Simplify right side
    70,898.53x = 3,822,636,549.69
  5. Step 5: Solve for x
    x = 3,822,636,549.69/70,898.53
  6. Step 6: Final answer
    x = 53,917.01

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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.