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Finding the Fourth Proportional to 123,476.60, 185,018.04 and 79,066.80

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Solution

The fourth proportional to 123,476.60, 185,018.04 and 79,066.80 is: 118,474.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,476.60 : 185,018.04 = 79,066.80 : x
  2. Step 2: Convert to fraction form
    123,476.60/185,018.04 = 79,066.80/x
  3. Step 3: Cross multiply
    123,476.60x = 185,018.04 × 79,066.80
  4. Step 4: Simplify right side
    123,476.60x = 14,628,784,365.07
  5. Step 5: Solve for x
    x = 14,628,784,365.07/123,476.60
  6. Step 6: Final answer
    x = 118,474.14

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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.