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Finding the Fourth Proportional to 70,976,721.10, 99,636,148.10 and 70,976,721.10

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Solution

The fourth proportional to 70,976,721.10, 99,636,148.10 and 70,976,721.10 is: 99,636,148.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,976,721.10 : 99,636,148.10 = 70,976,721.10 : x
  2. Step 2: Convert to fraction form
    70,976,721.10/99,636,148.10 = 70,976,721.10/x
  3. Step 3: Cross multiply
    70,976,721.10x = 99,636,148.10 × 70,976,721.10
  4. Step 4: Simplify right side
    70,976,721.10x = 7,071,847,095,171,994
  5. Step 5: Solve for x
    x = 7,071,847,095,171,994/70,976,721.10
  6. Step 6: Final answer
    x = 99,636,148.10

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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.