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Finding the Fourth Proportional to 125,496,687.40, 188,245,031.10 and 125,496,687.40

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Solution

The fourth proportional to 125,496,687.40, 188,245,031.10 and 125,496,687.40 is: 188,245,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,496,687.40 : 188,245,031.10 = 125,496,687.40 : x
  2. Step 2: Convert to fraction form
    125,496,687.40/188,245,031.10 = 125,496,687.40/x
  3. Step 3: Cross multiply
    125,496,687.40x = 188,245,031.10 × 125,496,687.40
  4. Step 4: Simplify right side
    125,496,687.40x = 23,624,127,822,559,980
  5. Step 5: Solve for x
    x = 23,624,127,822,559,980/125,496,687.40
  6. Step 6: Final answer
    x = 188,245,031.10

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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.