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Finding the Fourth Proportional to 93,268.80, 139,903.20 and 53,805.60

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Solution

The fourth proportional to 93,268.80, 139,903.20 and 53,805.60 is: 80,708.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,268.80 : 139,903.20 = 53,805.60 : x
  2. Step 2: Convert to fraction form
    93,268.80/139,903.20 = 53,805.60/x
  3. Step 3: Cross multiply
    93,268.80x = 139,903.20 × 53,805.60
  4. Step 4: Simplify right side
    93,268.80x = 7,527,575,617.92
  5. Step 5: Solve for x
    x = 7,527,575,617.92/93,268.80
  6. Step 6: Final answer
    x = 80,708.40

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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.