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Finding the Fourth Proportional to 183,696.46, 253,505.80 and 103,130.11

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Solution

The fourth proportional to 183,696.46, 253,505.80 and 103,130.11 is: 142,322.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,696.46 : 253,505.80 = 103,130.11 : x
  2. Step 2: Convert to fraction form
    183,696.46/253,505.80 = 103,130.11/x
  3. Step 3: Cross multiply
    183,696.46x = 253,505.80 × 103,130.11
  4. Step 4: Simplify right side
    183,696.46x = 26,144,081,485.43
  5. Step 5: Solve for x
    x = 26,144,081,485.43/183,696.46
  6. Step 6: Final answer
    x = 142,322.19

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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.