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Finding the Fourth Proportional to 104,605.40, 144,358.58 and 59,283.47

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Solution

The fourth proportional to 104,605.40, 144,358.58 and 59,283.47 is: 81,812.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,605.40 : 144,358.58 = 59,283.47 : x
  2. Step 2: Convert to fraction form
    104,605.40/144,358.58 = 59,283.47/x
  3. Step 3: Cross multiply
    104,605.40x = 144,358.58 × 59,283.47
  4. Step 4: Simplify right side
    104,605.40x = 8,558,076,973.09
  5. Step 5: Solve for x
    x = 8,558,076,973.09/104,605.40
  6. Step 6: Final answer
    x = 81,812.96

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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.