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Finding the Fourth Proportional to 219,810.41, 329,712.01 and 70,048.70

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Solution

The fourth proportional to 219,810.41, 329,712.01 and 70,048.70 is: 105,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,810.41 : 329,712.01 = 70,048.70 : x
  2. Step 2: Convert to fraction form
    219,810.41/329,712.01 = 70,048.70/x
  3. Step 3: Cross multiply
    219,810.41x = 329,712.01 × 70,048.70
  4. Step 4: Simplify right side
    219,810.41x = 23,095,895,851.21
  5. Step 5: Solve for x
    x = 23,095,895,851.21/219,810.41
  6. Step 6: Final answer
    x = 105,071.90

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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.