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Finding the Fourth Proportional to 105,048.30, 144,963.07 and 62,606.06

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Solution

The fourth proportional to 105,048.30, 144,963.07 and 62,606.06 is: 86,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,048.30 : 144,963.07 = 62,606.06 : x
  2. Step 2: Convert to fraction form
    105,048.30/144,963.07 = 62,606.06/x
  3. Step 3: Cross multiply
    105,048.30x = 144,963.07 × 62,606.06
  4. Step 4: Simplify right side
    105,048.30x = 9,075,566,658.20
  5. Step 5: Solve for x
    x = 9,075,566,658.20/105,048.30
  6. Step 6: Final answer
    x = 86,394.23

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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.