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Finding the Fourth Proportional to 178,328.64, 267,527.93 and 66,009.81

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Solution

The fourth proportional to 178,328.64, 267,527.93 and 66,009.81 is: 99,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,328.64 : 267,527.93 = 66,009.81 : x
  2. Step 2: Convert to fraction form
    178,328.64/267,527.93 = 66,009.81/x
  3. Step 3: Cross multiply
    178,328.64x = 267,527.93 × 66,009.81
  4. Step 4: Simplify right side
    178,328.64x = 17,659,467,828.99
  5. Step 5: Solve for x
    x = 17,659,467,828.99/178,328.64
  6. Step 6: Final answer
    x = 99,027.66

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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.