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Finding the Fourth Proportional to 70,634,643.90, 98,661,753.30 and 70,634,643.90

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Solution

The fourth proportional to 70,634,643.90, 98,661,753.30 and 70,634,643.90 is: 98,661,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,634,643.90 : 98,661,753.30 = 70,634,643.90 : x
  2. Step 2: Convert to fraction form
    70,634,643.90/98,661,753.30 = 70,634,643.90/x
  3. Step 3: Cross multiply
    70,634,643.90x = 98,661,753.30 × 70,634,643.90
  4. Step 4: Simplify right side
    70,634,643.90x = 6,968,937,810,895,150
  5. Step 5: Solve for x
    x = 6,968,937,810,895,150/70,634,643.90
  6. Step 6: Final answer
    x = 98,661,753.30

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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.