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Finding the Fourth Proportional to 91,093.32, 125,719.74 and 53,367.57

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Solution

The fourth proportional to 91,093.32, 125,719.74 and 53,367.57 is: 73,653.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,093.32 : 125,719.74 = 53,367.57 : x
  2. Step 2: Convert to fraction form
    91,093.32/125,719.74 = 53,367.57/x
  3. Step 3: Cross multiply
    91,093.32x = 125,719.74 × 53,367.57
  4. Step 4: Simplify right side
    91,093.32x = 6,709,357,024.83
  5. Step 5: Solve for x
    x = 6,709,357,024.83/91,093.32
  6. Step 6: Final answer
    x = 73,653.67

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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.