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Finding the Fourth Proportional to 85,621.94, 118,152.84 and 46,851.90

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Solution

The fourth proportional to 85,621.94, 118,152.84 and 46,851.90 is: 64,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.94 : 118,152.84 = 46,851.90 : x
  2. Step 2: Convert to fraction form
    85,621.94/118,152.84 = 46,851.90/x
  3. Step 3: Cross multiply
    85,621.94x = 118,152.84 × 46,851.90
  4. Step 4: Simplify right side
    85,621.94x = 5,535,685,441.63
  5. Step 5: Solve for x
    x = 5,535,685,441.63/85,621.94
  6. Step 6: Final answer
    x = 64,652.65

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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.