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Finding the Fourth Proportional to 220,706.73, 304,554.22 and 123,888.40

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Solution

The fourth proportional to 220,706.73, 304,554.22 and 123,888.40 is: 170,954.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,706.73 : 304,554.22 = 123,888.40 : x
  2. Step 2: Convert to fraction form
    220,706.73/304,554.22 = 123,888.40/x
  3. Step 3: Cross multiply
    220,706.73x = 304,554.22 × 123,888.40
  4. Step 4: Simplify right side
    220,706.73x = 37,730,733,957.94
  5. Step 5: Solve for x
    x = 37,730,733,957.94/220,706.73
  6. Step 6: Final answer
    x = 170,954.16

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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.