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Finding the Fourth Proportional to 123,706.68, 170,715.23 and 67,118.06

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Solution

The fourth proportional to 123,706.68, 170,715.23 and 67,118.06 is: 92,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,706.68 : 170,715.23 = 67,118.06 : x
  2. Step 2: Convert to fraction form
    123,706.68/170,715.23 = 67,118.06/x
  3. Step 3: Cross multiply
    123,706.68x = 170,715.23 × 67,118.06
  4. Step 4: Simplify right side
    123,706.68x = 11,458,075,050.05
  5. Step 5: Solve for x
    x = 11,458,075,050.05/123,706.68
  6. Step 6: Final answer
    x = 92,622.93

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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.