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Finding the Fourth Proportional to 356,586.10, 534,903.76 and 103,868.69

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Solution

The fourth proportional to 356,586.10, 534,903.76 and 103,868.69 is: 155,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,586.10 : 534,903.76 = 103,868.69 : x
  2. Step 2: Convert to fraction form
    356,586.10/534,903.76 = 103,868.69/x
  3. Step 3: Cross multiply
    356,586.10x = 534,903.76 × 103,868.69
  4. Step 4: Simplify right side
    356,586.10x = 55,559,749,633.41
  5. Step 5: Solve for x
    x = 55,559,749,633.41/356,586.10
  6. Step 6: Final answer
    x = 155,810.20

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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.