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Finding the Fourth Proportional to 236,665.98, 355,109.58 and 103,528.98

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Solution

The fourth proportional to 236,665.98, 355,109.58 and 103,528.98 is: 155,341.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,665.98 : 355,109.58 = 103,528.98 : x
  2. Step 2: Convert to fraction form
    236,665.98/355,109.58 = 103,528.98/x
  3. Step 3: Cross multiply
    236,665.98x = 355,109.58 × 103,528.98
  4. Step 4: Simplify right side
    236,665.98x = 36,764,132,605.63
  5. Step 5: Solve for x
    x = 36,764,132,605.63/236,665.98
  6. Step 6: Final answer
    x = 155,341.86

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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.