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Finding the Fourth Proportional to 117,069.74, 161,556.76 and 63,354.77

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Solution

The fourth proportional to 117,069.74, 161,556.76 and 63,354.77 is: 87,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,069.74 : 161,556.76 = 63,354.77 : x
  2. Step 2: Convert to fraction form
    117,069.74/161,556.76 = 63,354.77/x
  3. Step 3: Cross multiply
    117,069.74x = 161,556.76 × 63,354.77
  4. Step 4: Simplify right side
    117,069.74x = 10,235,390,527.34
  5. Step 5: Solve for x
    x = 10,235,390,527.34/117,069.74
  6. Step 6: Final answer
    x = 87,429.85

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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.