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Finding the Fourth Proportional to 66,528,003.90, 92,912,457.30 and 66,528,003.90

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Solution

The fourth proportional to 66,528,003.90, 92,912,457.30 and 66,528,003.90 is: 92,912,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528,003.90 : 92,912,457.30 = 66,528,003.90 : x
  2. Step 2: Convert to fraction form
    66,528,003.90/92,912,457.30 = 66,528,003.90/x
  3. Step 3: Cross multiply
    66,528,003.90x = 92,912,457.30 × 66,528,003.90
  4. Step 4: Simplify right side
    66,528,003.90x = 6,181,280,321,612,983
  5. Step 5: Solve for x
    x = 6,181,280,321,612,983/66,528,003.90
  6. Step 6: Final answer
    x = 92,912,457.30

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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.