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Finding the Fourth Proportional to 85,495.99, 118,017.39 and 76,527.67

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Solution

The fourth proportional to 85,495.99, 118,017.39 and 76,527.67 is: 105,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,495.99 : 118,017.39 = 76,527.67 : x
  2. Step 2: Convert to fraction form
    85,495.99/118,017.39 = 76,527.67/x
  3. Step 3: Cross multiply
    85,495.99x = 118,017.39 × 76,527.67
  4. Step 4: Simplify right side
    85,495.99x = 9,031,595,876.18
  5. Step 5: Solve for x
    x = 9,031,595,876.18/85,495.99
  6. Step 6: Final answer
    x = 105,637.65

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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.