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Finding the Fourth Proportional to 180,773.34, 249,473.70 and 109,139.46

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Solution

The fourth proportional to 180,773.34, 249,473.70 and 109,139.46 is: 150,616.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,773.34 : 249,473.70 = 109,139.46 : x
  2. Step 2: Convert to fraction form
    180,773.34/249,473.70 = 109,139.46/x
  3. Step 3: Cross multiply
    180,773.34x = 249,473.70 × 109,139.46
  4. Step 4: Simplify right side
    180,773.34x = 27,227,424,902.20
  5. Step 5: Solve for x
    x = 27,227,424,902.20/180,773.34
  6. Step 6: Final answer
    x = 150,616.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.