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Finding the Fourth Proportional to 245,064.80, 367,451.40 and 126,966.80

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Solution

The fourth proportional to 245,064.80, 367,451.40 and 126,966.80 is: 190,374.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,064.80 : 367,451.40 = 126,966.80 : x
  2. Step 2: Convert to fraction form
    245,064.80/367,451.40 = 126,966.80/x
  3. Step 3: Cross multiply
    245,064.80x = 367,451.40 × 126,966.80
  4. Step 4: Simplify right side
    245,064.80x = 46,654,128,413.52
  5. Step 5: Solve for x
    x = 46,654,128,413.52/245,064.80
  6. Step 6: Final answer
    x = 190,374.66

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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.