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Finding the Fourth Proportional to 55,312,997.80, 82,810,064.40 and 55,312,997.80

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Solution

The fourth proportional to 55,312,997.80, 82,810,064.40 and 55,312,997.80 is: 82,810,064.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,312,997.80 : 82,810,064.40 = 55,312,997.80 : x
  2. Step 2: Convert to fraction form
    55,312,997.80/82,810,064.40 = 55,312,997.80/x
  3. Step 3: Cross multiply
    55,312,997.80x = 82,810,064.40 × 55,312,997.80
  4. Step 4: Simplify right side
    55,312,997.80x = 4,580,472,909,975,058
  5. Step 5: Solve for x
    x = 4,580,472,909,975,058/55,312,997.80
  6. Step 6: Final answer
    x = 82,810,064.40

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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.