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Finding the Fourth Proportional to 118,127,816.80, 177,191,725.20 and 118,127,816.80

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Solution

The fourth proportional to 118,127,816.80, 177,191,725.20 and 118,127,816.80 is: 177,191,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,127,816.80 : 177,191,725.20 = 118,127,816.80 : x
  2. Step 2: Convert to fraction form
    118,127,816.80/177,191,725.20 = 118,127,816.80/x
  3. Step 3: Cross multiply
    118,127,816.80x = 177,191,725.20 × 118,127,816.80
  4. Step 4: Simplify right side
    118,127,816.80x = 20,931,271,652,901,540
  5. Step 5: Solve for x
    x = 20,931,271,652,901,540/118,127,816.80
  6. Step 6: Final answer
    x = 177,191,725.20

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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.