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Finding the Fourth Proportional to 60,751.65, 91,158.21 and 40,988.67

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Solution

The fourth proportional to 60,751.65, 91,158.21 and 40,988.67 is: 61,503.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,751.65 : 91,158.21 = 40,988.67 : x
  2. Step 2: Convert to fraction form
    60,751.65/91,158.21 = 40,988.67/x
  3. Step 3: Cross multiply
    60,751.65x = 91,158.21 × 40,988.67
  4. Step 4: Simplify right side
    60,751.65x = 3,736,453,787.48
  5. Step 5: Solve for x
    x = 3,736,453,787.48/60,751.65
  6. Step 6: Final answer
    x = 61,503.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.