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Finding the Fourth Proportional to 437,969.68, 656,953.08 and 105,545.68

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Solution

The fourth proportional to 437,969.68, 656,953.08 and 105,545.68 is: 158,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,969.68 : 656,953.08 = 105,545.68 : x
  2. Step 2: Convert to fraction form
    437,969.68/656,953.08 = 105,545.68/x
  3. Step 3: Cross multiply
    437,969.68x = 656,953.08 × 105,545.68
  4. Step 4: Simplify right side
    437,969.68x = 69,338,559,556.69
  5. Step 5: Solve for x
    x = 69,338,559,556.69/437,969.68
  6. Step 6: Final answer
    x = 158,318.17

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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.