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Finding the Fourth Proportional to 97,898.90, 135,110.03 and 54,885.74

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Solution

The fourth proportional to 97,898.90, 135,110.03 and 54,885.74 is: 75,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,898.90 : 135,110.03 = 54,885.74 : x
  2. Step 2: Convert to fraction form
    97,898.90/135,110.03 = 54,885.74/x
  3. Step 3: Cross multiply
    97,898.90x = 135,110.03 × 54,885.74
  4. Step 4: Simplify right side
    97,898.90x = 7,415,613,027.99
  5. Step 5: Solve for x
    x = 7,415,613,027.99/97,898.90
  6. Step 6: Final answer
    x = 75,747.67

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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.