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Finding the Fourth Proportional to 179,394.21, 247,554.83 and 98,820

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Solution

The fourth proportional to 179,394.21, 247,554.83 and 98,820 is: 136,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,394.21 : 247,554.83 = 98,820 : x
  2. Step 2: Convert to fraction form
    179,394.21/247,554.83 = 98,820/x
  3. Step 3: Cross multiply
    179,394.21x = 247,554.83 × 98,820
  4. Step 4: Simplify right side
    179,394.21x = 24,463,368,547.65
  5. Step 5: Solve for x
    x = 24,463,368,547.65/179,394.21
  6. Step 6: Final answer
    x = 136,366.54

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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.