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Finding the Fourth Proportional to 476,627.40, 714,940.54 and 121,641.40

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Solution

The fourth proportional to 476,627.40, 714,940.54 and 121,641.40 is: 182,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,627.40 : 714,940.54 = 121,641.40 : x
  2. Step 2: Convert to fraction form
    476,627.40/714,940.54 = 121,641.40/x
  3. Step 3: Cross multiply
    476,627.40x = 714,940.54 × 121,641.40
  4. Step 4: Simplify right side
    476,627.40x = 86,966,368,202.36
  5. Step 5: Solve for x
    x = 86,966,368,202.36/476,627.40
  6. Step 6: Final answer
    x = 182,461.96

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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.