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Finding the Fourth Proportional to 370,574,657.94, 555,865,978.20 and 111,792,120.21

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Solution

The fourth proportional to 370,574,657.94, 555,865,978.20 and 111,792,120.21 is: 167,689,384.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,574,657.94 : 555,865,978.20 = 111,792,120.21 : x
  2. Step 2: Convert to fraction form
    370,574,657.94/555,865,978.20 = 111,792,120.21/x
  3. Step 3: Cross multiply
    370,574,657.94x = 555,865,978.20 × 111,792,120.21
  4. Step 4: Simplify right side
    370,574,657.94x = 62,141,436,255,583,640
  5. Step 5: Solve for x
    x = 62,141,436,255,583,640/370,574,657.94
  6. Step 6: Final answer
    x = 167,689,384.38

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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.