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Finding the Fourth Proportional to 304,970.94, 420,825.72 and 168,970.92

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Solution

The fourth proportional to 304,970.94, 420,825.72 and 168,970.92 is: 233,160.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,970.94 : 420,825.72 = 168,970.92 : x
  2. Step 2: Convert to fraction form
    304,970.94/420,825.72 = 168,970.92/x
  3. Step 3: Cross multiply
    304,970.94x = 420,825.72 × 168,970.92
  4. Step 4: Simplify right side
    304,970.94x = 71,107,309,068.06
  5. Step 5: Solve for x
    x = 71,107,309,068.06/304,970.94
  6. Step 6: Final answer
    x = 233,160.93

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1.5x scale

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.