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Finding the Fourth Proportional to 476,442.62, 714,644.13 and 121,465.34

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Solution

The fourth proportional to 476,442.62, 714,644.13 and 121,465.34 is: 182,192.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,442.62 : 714,644.13 = 121,465.34 : x
  2. Step 2: Convert to fraction form
    476,442.62/714,644.13 = 121,465.34/x
  3. Step 3: Cross multiply
    476,442.62x = 714,644.13 × 121,465.34
  4. Step 4: Simplify right side
    476,442.62x = 86,804,492,229.45
  5. Step 5: Solve for x
    x = 86,804,492,229.45/476,442.62
  6. Step 6: Final answer
    x = 182,192.96

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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.