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Finding the Fourth Proportional to 190,594.65, 285,918.45 and 64,271.10

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Solution

The fourth proportional to 190,594.65, 285,918.45 and 64,271.10 is: 96,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,594.65 : 285,918.45 = 64,271.10 : x
  2. Step 2: Convert to fraction form
    190,594.65/285,918.45 = 64,271.10/x
  3. Step 3: Cross multiply
    190,594.65x = 285,918.45 × 64,271.10
  4. Step 4: Simplify right side
    190,594.65x = 18,376,293,291.80
  5. Step 5: Solve for x
    x = 18,376,293,291.80/190,594.65
  6. Step 6: Final answer
    x = 96,415.58

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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.