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Finding the Fourth Proportional to 446,492.04, 669,743.28 and 130,955.28

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Solution

The fourth proportional to 446,492.04, 669,743.28 and 130,955.28 is: 196,434.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,492.04 : 669,743.28 = 130,955.28 : x
  2. Step 2: Convert to fraction form
    446,492.04/669,743.28 = 130,955.28/x
  3. Step 3: Cross multiply
    446,492.04x = 669,743.28 × 130,955.28
  4. Step 4: Simplify right side
    446,492.04x = 87,706,418,760.52
  5. Step 5: Solve for x
    x = 87,706,418,760.52/446,492.04
  6. Step 6: Final answer
    x = 196,434.45

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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.