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Finding the Fourth Proportional to 186,312.96, 279,119.52 and 144,555.84

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Solution

The fourth proportional to 186,312.96, 279,119.52 and 144,555.84 is: 216,562.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,312.96 : 279,119.52 = 144,555.84 : x
  2. Step 2: Convert to fraction form
    186,312.96/279,119.52 = 144,555.84/x
  3. Step 3: Cross multiply
    186,312.96x = 279,119.52 × 144,555.84
  4. Step 4: Simplify right side
    186,312.96x = 40,348,356,674.00
  5. Step 5: Solve for x
    x = 40,348,356,674.00/186,312.96
  6. Step 6: Final answer
    x = 216,562.27

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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.