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Finding the Fourth Proportional to 71,084,416.65, 99,805,161.45 and 71,084,416.65

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Solution

The fourth proportional to 71,084,416.65, 99,805,161.45 and 71,084,416.65 is: 99,805,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,084,416.65 : 99,805,161.45 = 71,084,416.65 : x
  2. Step 2: Convert to fraction form
    71,084,416.65/99,805,161.45 = 71,084,416.65/x
  3. Step 3: Cross multiply
    71,084,416.65x = 99,805,161.45 × 71,084,416.65
  4. Step 4: Simplify right side
    71,084,416.65x = 7,094,591,680,332,319
  5. Step 5: Solve for x
    x = 7,094,591,680,332,319/71,084,416.65
  6. Step 6: Final answer
    x = 99,805,161.45

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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.