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Finding the Fourth Proportional to 442,130.90, 663,244.95 and 161,708.90

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Solution

The fourth proportional to 442,130.90, 663,244.95 and 161,708.90 is: 242,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,130.90 : 663,244.95 = 161,708.90 : x
  2. Step 2: Convert to fraction form
    442,130.90/663,244.95 = 161,708.90/x
  3. Step 3: Cross multiply
    442,130.90x = 663,244.95 × 161,708.90
  4. Step 4: Simplify right side
    442,130.90x = 107,252,611,295.06
  5. Step 5: Solve for x
    x = 107,252,611,295.06/442,130.90
  6. Step 6: Final answer
    x = 242,581.13

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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.