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Finding the Fourth Proportional to 325,798.40, 488,681.40 and 168,042.80

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Solution

The fourth proportional to 325,798.40, 488,681.40 and 168,042.80 is: 252,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,798.40 : 488,681.40 = 168,042.80 : x
  2. Step 2: Convert to fraction form
    325,798.40/488,681.40 = 168,042.80/x
  3. Step 3: Cross multiply
    325,798.40x = 488,681.40 × 168,042.80
  4. Step 4: Simplify right side
    325,798.40x = 82,119,390,763.92
  5. Step 5: Solve for x
    x = 82,119,390,763.92/325,798.40
  6. Step 6: Final answer
    x = 252,055.84

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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.