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Finding the Fourth Proportional to 145,967.91, 201,359.23 and 126,804.66

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Solution

The fourth proportional to 145,967.91, 201,359.23 and 126,804.66 is: 174,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,967.91 : 201,359.23 = 126,804.66 : x
  2. Step 2: Convert to fraction form
    145,967.91/201,359.23 = 126,804.66/x
  3. Step 3: Cross multiply
    145,967.91x = 201,359.23 × 126,804.66
  4. Step 4: Simplify right side
    145,967.91x = 25,533,287,625.90
  5. Step 5: Solve for x
    x = 25,533,287,625.90/145,967.91
  6. Step 6: Final answer
    x = 174,923.98

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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.