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Finding the Fourth Proportional to 144,617.51, 199,953.15 and 126,661.11

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Solution

The fourth proportional to 144,617.51, 199,953.15 and 126,661.11 is: 175,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.51 : 199,953.15 = 126,661.11 : x
  2. Step 2: Convert to fraction form
    144,617.51/199,953.15 = 126,661.11/x
  3. Step 3: Cross multiply
    144,617.51x = 199,953.15 × 126,661.11
  4. Step 4: Simplify right side
    144,617.51x = 25,326,287,927.00
  5. Step 5: Solve for x
    x = 25,326,287,927.00/144,617.51
  6. Step 6: Final answer
    x = 175,126.01

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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.