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Finding the Fourth Proportional to 85,057.80, 117,378.83 and 46,816.53

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Solution

The fourth proportional to 85,057.80, 117,378.83 and 46,816.53 is: 64,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,057.80 : 117,378.83 = 46,816.53 : x
  2. Step 2: Convert to fraction form
    85,057.80/117,378.83 = 46,816.53/x
  3. Step 3: Cross multiply
    85,057.80x = 117,378.83 × 46,816.53
  4. Step 4: Simplify right side
    85,057.80x = 5,495,269,280.71
  5. Step 5: Solve for x
    x = 5,495,269,280.71/85,057.80
  6. Step 6: Final answer
    x = 64,606.30

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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.