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Finding the Fourth Proportional to 219,333.52, 329,011.98 and 69,585.79

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Solution

The fourth proportional to 219,333.52, 329,011.98 and 69,585.79 is: 104,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,333.52 : 329,011.98 = 69,585.79 : x
  2. Step 2: Convert to fraction form
    219,333.52/329,011.98 = 69,585.79/x
  3. Step 3: Cross multiply
    219,333.52x = 329,011.98 × 69,585.79
  4. Step 4: Simplify right side
    219,333.52x = 22,894,558,547.76
  5. Step 5: Solve for x
    x = 22,894,558,547.76/219,333.52
  6. Step 6: Final answer
    x = 104,382.40

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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.