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Finding the Fourth Proportional to 91,190.58, 136,533.96 and 46,721.58

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Solution

The fourth proportional to 91,190.58, 136,533.96 and 46,721.58 is: 69,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,190.58 : 136,533.96 = 46,721.58 : x
  2. Step 2: Convert to fraction form
    91,190.58/136,533.96 = 46,721.58/x
  3. Step 3: Cross multiply
    91,190.58x = 136,533.96 × 46,721.58
  4. Step 4: Simplify right side
    91,190.58x = 6,379,082,334.86
  5. Step 5: Solve for x
    x = 6,379,082,334.86/91,190.58
  6. Step 6: Final answer
    x = 69,953.30

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1.5x scale

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.