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Finding the Fourth Proportional to 266,253.89, 399,063.12 and 153,696.29

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Solution

The fourth proportional to 266,253.89, 399,063.12 and 153,696.29 is: 230,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,253.89 : 399,063.12 = 153,696.29 : x
  2. Step 2: Convert to fraction form
    266,253.89/399,063.12 = 153,696.29/x
  3. Step 3: Cross multiply
    266,253.89x = 399,063.12 × 153,696.29
  4. Step 4: Simplify right side
    266,253.89x = 61,334,519,024.51
  5. Step 5: Solve for x
    x = 61,334,519,024.51/266,253.89
  6. Step 6: Final answer
    x = 230,361.03

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1.5x scale

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.