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Finding the Fourth Proportional to 185,492.81, 255,980.12 and 104,918.60

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Solution

The fourth proportional to 185,492.81, 255,980.12 and 104,918.60 is: 144,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,492.81 : 255,980.12 = 104,918.60 : x
  2. Step 2: Convert to fraction form
    185,492.81/255,980.12 = 104,918.60/x
  3. Step 3: Cross multiply
    185,492.81x = 255,980.12 × 104,918.60
  4. Step 4: Simplify right side
    185,492.81x = 26,857,075,933.59
  5. Step 5: Solve for x
    x = 26,857,075,933.59/185,492.81
  6. Step 6: Final answer
    x = 144,787.69

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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.