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Finding the Fourth Proportional to 66,750.70, 91,957.53 and 46,570.90

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Solution

The fourth proportional to 66,750.70, 91,957.53 and 46,570.90 is: 64,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,750.70 : 91,957.53 = 46,570.90 : x
  2. Step 2: Convert to fraction form
    66,750.70/91,957.53 = 46,570.90/x
  3. Step 3: Cross multiply
    66,750.70x = 91,957.53 × 46,570.90
  4. Step 4: Simplify right side
    66,750.70x = 4,282,544,933.88
  5. Step 5: Solve for x
    x = 4,282,544,933.88/66,750.70
  6. Step 6: Final answer
    x = 64,157.30

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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.