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Finding the Fourth Proportional to 368,661.74, 553,023.32 and 98,828.33

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Solution

The fourth proportional to 368,661.74, 553,023.32 and 98,828.33 is: 148,250.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,661.74 : 553,023.32 = 98,828.33 : x
  2. Step 2: Convert to fraction form
    368,661.74/553,023.32 = 98,828.33/x
  3. Step 3: Cross multiply
    368,661.74x = 553,023.32 × 98,828.33
  4. Step 4: Simplify right side
    368,661.74x = 54,654,367,907.40
  5. Step 5: Solve for x
    x = 54,654,367,907.40/368,661.74
  6. Step 6: Final answer
    x = 148,250.72

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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.