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Finding the Fourth Proportional to 265,807,772.80, 398,711,659.20 and 175,033,859.20

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Solution

The fourth proportional to 265,807,772.80, 398,711,659.20 and 175,033,859.20 is: 262,550,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,807,772.80 : 398,711,659.20 = 175,033,859.20 : x
  2. Step 2: Convert to fraction form
    265,807,772.80/398,711,659.20 = 175,033,859.20/x
  3. Step 3: Cross multiply
    265,807,772.80x = 398,711,659.20 × 175,033,859.20
  4. Step 4: Simplify right side
    265,807,772.80x = 69,788,040,417,811,176
  5. Step 5: Solve for x
    x = 69,788,040,417,811,176/265,807,772.80
  6. Step 6: Final answer
    x = 262,550,788.80

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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.