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Finding the Fourth Proportional to 73,872,007.70, 103,590,871.90 and 73,872,007.70

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Solution

The fourth proportional to 73,872,007.70, 103,590,871.90 and 73,872,007.70 is: 103,590,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,007.70 : 103,590,871.90 = 73,872,007.70 : x
  2. Step 2: Convert to fraction form
    73,872,007.70/103,590,871.90 = 73,872,007.70/x
  3. Step 3: Cross multiply
    73,872,007.70x = 103,590,871.90 × 73,872,007.70
  4. Step 4: Simplify right side
    73,872,007.70x = 7,652,465,686,646,514
  5. Step 5: Solve for x
    x = 7,652,465,686,646,514/73,872,007.70
  6. Step 6: Final answer
    x = 103,590,871.90

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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.