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Finding the Fourth Proportional to 72,477.70, 108,716.55 and 46,233.70

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Solution

The fourth proportional to 72,477.70, 108,716.55 and 46,233.70 is: 69,350.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,477.70 : 108,716.55 = 46,233.70 : x
  2. Step 2: Convert to fraction form
    72,477.70/108,716.55 = 46,233.70/x
  3. Step 3: Cross multiply
    72,477.70x = 108,716.55 × 46,233.70
  4. Step 4: Simplify right side
    72,477.70x = 5,026,368,357.74
  5. Step 5: Solve for x
    x = 5,026,368,357.74/72,477.70
  6. Step 6: Final answer
    x = 69,350.55

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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.