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Finding the Fourth Proportional to 12,759,160.65, 19,138,740.98 and 12,759,160.65

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Solution

The fourth proportional to 12,759,160.65, 19,138,740.98 and 12,759,160.65 is: 19,138,740.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759,160.65 : 19,138,740.98 = 12,759,160.65 : x
  2. Step 2: Convert to fraction form
    12,759,160.65/19,138,740.98 = 12,759,160.65/x
  3. Step 3: Cross multiply
    12,759,160.65x = 19,138,740.98 × 12,759,160.65
  4. Step 4: Simplify right side
    12,759,160.65x = 244,194,270,738,762.66
  5. Step 5: Solve for x
    x = 244,194,270,738,762.66/12,759,160.65
  6. Step 6: Final answer
    x = 19,138,740.98

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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.