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Finding the Fourth Proportional to 178,995,280.80, 251,273,637.60 and 178,995,280.80

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Solution

The fourth proportional to 178,995,280.80, 251,273,637.60 and 178,995,280.80 is: 251,273,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,995,280.80 : 251,273,637.60 = 178,995,280.80 : x
  2. Step 2: Convert to fraction form
    178,995,280.80/251,273,637.60 = 178,995,280.80/x
  3. Step 3: Cross multiply
    178,995,280.80x = 251,273,637.60 × 178,995,280.80
  4. Step 4: Simplify right side
    178,995,280.80x = 44,976,795,319,849,440
  5. Step 5: Solve for x
    x = 44,976,795,319,849,440/178,995,280.80
  6. Step 6: Final answer
    x = 251,273,637.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.