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Finding the Fourth Proportional to 104,658.10, 156,987.15 and 103,673.95

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Solution

The fourth proportional to 104,658.10, 156,987.15 and 103,673.95 is: 155,510.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,658.10 : 156,987.15 = 103,673.95 : x
  2. Step 2: Convert to fraction form
    104,658.10/156,987.15 = 103,673.95/x
  3. Step 3: Cross multiply
    104,658.10x = 156,987.15 × 103,673.95
  4. Step 4: Simplify right side
    104,658.10x = 16,275,477,939.74
  5. Step 5: Solve for x
    x = 16,275,477,939.74/104,658.10
  6. Step 6: Final answer
    x = 155,510.93

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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.