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Finding the Fourth Proportional to 265,266.78, 366,011.40 and 157,815.81

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Solution

The fourth proportional to 265,266.78, 366,011.40 and 157,815.81 is: 217,752.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,266.78 : 366,011.40 = 157,815.81 : x
  2. Step 2: Convert to fraction form
    265,266.78/366,011.40 = 157,815.81/x
  3. Step 3: Cross multiply
    265,266.78x = 366,011.40 × 157,815.81
  4. Step 4: Simplify right side
    265,266.78x = 57,762,385,560.23
  5. Step 5: Solve for x
    x = 57,762,385,560.23/265,266.78
  6. Step 6: Final answer
    x = 217,752.05

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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.