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Finding the Fourth Proportional to 312,010.18, 468,085.43 and 98,790.84

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Solution

The fourth proportional to 312,010.18, 468,085.43 and 98,790.84 is: 148,208.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,010.18 : 468,085.43 = 98,790.84 : x
  2. Step 2: Convert to fraction form
    312,010.18/468,085.43 = 98,790.84/x
  3. Step 3: Cross multiply
    312,010.18x = 468,085.43 × 98,790.84
  4. Step 4: Simplify right side
    312,010.18x = 46,242,553,068.44
  5. Step 5: Solve for x
    x = 46,242,553,068.44/312,010.18
  6. Step 6: Final answer
    x = 148,208.48

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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.