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Finding the Fourth Proportional to 312,095.39, 468,103.63 and 98,884.94

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Solution

The fourth proportional to 312,095.39, 468,103.63 and 98,884.94 is: 148,314.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,095.39 : 468,103.63 = 98,884.94 : x
  2. Step 2: Convert to fraction form
    312,095.39/468,103.63 = 98,884.94/x
  3. Step 3: Cross multiply
    312,095.39x = 468,103.63 × 98,884.94
  4. Step 4: Simplify right side
    312,095.39x = 46,288,399,216.94
  5. Step 5: Solve for x
    x = 46,288,399,216.94/312,095.39
  6. Step 6: Final answer
    x = 148,314.91

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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.