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Finding the Fourth Proportional to 229,073.92, 316,071.84 and 221,522.56

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Solution

The fourth proportional to 229,073.92, 316,071.84 and 221,522.56 is: 305,652.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,073.92 : 316,071.84 = 221,522.56 : x
  2. Step 2: Convert to fraction form
    229,073.92/316,071.84 = 221,522.56/x
  3. Step 3: Cross multiply
    229,073.92x = 316,071.84 × 221,522.56
  4. Step 4: Simplify right side
    229,073.92x = 70,017,043,140.71
  5. Step 5: Solve for x
    x = 70,017,043,140.71/229,073.92
  6. Step 6: Final answer
    x = 305,652.62

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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.