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Finding the Fourth Proportional to 183,713.62, 275,631.75 and 71,397.40

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Solution

The fourth proportional to 183,713.62, 275,631.75 and 71,397.40 is: 107,119.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,713.62 : 275,631.75 = 71,397.40 : x
  2. Step 2: Convert to fraction form
    183,713.62/275,631.75 = 71,397.40/x
  3. Step 3: Cross multiply
    183,713.62x = 275,631.75 × 71,397.40
  4. Step 4: Simplify right side
    183,713.62x = 19,679,390,307.45
  5. Step 5: Solve for x
    x = 19,679,390,307.45/183,713.62
  6. Step 6: Final answer
    x = 107,119.93

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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.