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Finding the Fourth Proportional to 438,995.04, 658,492.39 and 123,451.93

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Solution

The fourth proportional to 438,995.04, 658,492.39 and 123,451.93 is: 185,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,995.04 : 658,492.39 = 123,451.93 : x
  2. Step 2: Convert to fraction form
    438,995.04/658,492.39 = 123,451.93/x
  3. Step 3: Cross multiply
    438,995.04x = 658,492.39 × 123,451.93
  4. Step 4: Simplify right side
    438,995.04x = 81,292,156,435.81
  5. Step 5: Solve for x
    x = 81,292,156,435.81/438,995.04
  6. Step 6: Final answer
    x = 185,177.85

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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.