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Finding the Fourth Proportional to 245,570.32, 338,883.51 and 136,673.92

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Solution

The fourth proportional to 245,570.32, 338,883.51 and 136,673.92 is: 188,608.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,570.32 : 338,883.51 = 136,673.92 : x
  2. Step 2: Convert to fraction form
    245,570.32/338,883.51 = 136,673.92/x
  3. Step 3: Cross multiply
    245,570.32x = 338,883.51 × 136,673.92
  4. Step 4: Simplify right side
    245,570.32x = 46,316,537,735.06
  5. Step 5: Solve for x
    x = 46,316,537,735.06/245,570.32
  6. Step 6: Final answer
    x = 188,608.04

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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.