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Finding the Fourth Proportional to 265,484,930.90, 366,252,978.30 and 253,176,259.05

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Solution

The fourth proportional to 265,484,930.90, 366,252,978.30 and 253,176,259.05 is: 349,272,399.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,484,930.90 : 366,252,978.30 = 253,176,259.05 : x
  2. Step 2: Convert to fraction form
    265,484,930.90/366,252,978.30 = 253,176,259.05/x
  3. Step 3: Cross multiply
    265,484,930.90x = 366,252,978.30 × 253,176,259.05
  4. Step 4: Simplify right side
    265,484,930.90x = 92,726,558,911,914,832
  5. Step 5: Solve for x
    x = 92,726,558,911,914,832/265,484,930.90
  6. Step 6: Final answer
    x = 349,272,399.75

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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.