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Finding the Fourth Proportional to 216,703.08, 298,929.90 and 126,048.84

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Solution

The fourth proportional to 216,703.08, 298,929.90 and 126,048.84 is: 173,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,703.08 : 298,929.90 = 126,048.84 : x
  2. Step 2: Convert to fraction form
    216,703.08/298,929.90 = 126,048.84/x
  3. Step 3: Cross multiply
    216,703.08x = 298,929.90 × 126,048.84
  4. Step 4: Simplify right side
    216,703.08x = 37,679,767,136.32
  5. Step 5: Solve for x
    x = 37,679,767,136.32/216,703.08
  6. Step 6: Final answer
    x = 173,877.40

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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.