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Finding the Fourth Proportional to 219,895.99, 329,875.43 and 70,137.98

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Solution

The fourth proportional to 219,895.99, 329,875.43 and 70,137.98 is: 105,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,895.99 : 329,875.43 = 70,137.98 : x
  2. Step 2: Convert to fraction form
    219,895.99/329,875.43 = 70,137.98/x
  3. Step 3: Cross multiply
    219,895.99x = 329,875.43 × 70,137.98
  4. Step 4: Simplify right side
    219,895.99x = 23,136,796,311.83
  5. Step 5: Solve for x
    x = 23,136,796,311.83/219,895.99
  6. Step 6: Final answer
    x = 105,217.00

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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.