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Finding the Fourth Proportional to 219,798.60, 329,694.30 and 70,036.87

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Solution

The fourth proportional to 219,798.60, 329,694.30 and 70,036.87 is: 105,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,798.60 : 329,694.30 = 70,036.87 : x
  2. Step 2: Convert to fraction form
    219,798.60/329,694.30 = 70,036.87/x
  3. Step 3: Cross multiply
    219,798.60x = 329,694.30 × 70,036.87
  4. Step 4: Simplify right side
    219,798.60x = 23,090,756,828.84
  5. Step 5: Solve for x
    x = 23,090,756,828.84/219,798.60
  6. Step 6: Final answer
    x = 105,054.16

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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.