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Finding the Fourth Proportional to 154,477.65, 216,579.75 and 154,477.65

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Solution

The fourth proportional to 154,477.65, 216,579.75 and 154,477.65 is: 216,579.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,477.65 : 216,579.75 = 154,477.65 : x
  2. Step 2: Convert to fraction form
    154,477.65/216,579.75 = 154,477.65/x
  3. Step 3: Cross multiply
    154,477.65x = 216,579.75 × 154,477.65
  4. Step 4: Simplify right side
    154,477.65x = 33,456,730,817.59
  5. Step 5: Solve for x
    x = 33,456,730,817.59/154,477.65
  6. Step 6: Final answer
    x = 216,579.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.