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Finding the Fourth Proportional to 28,776,658.60, 43,164,987.90 and 28,776,658.60

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Solution

The fourth proportional to 28,776,658.60, 43,164,987.90 and 28,776,658.60 is: 43,164,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776,658.60 : 43,164,987.90 = 28,776,658.60 : x
  2. Step 2: Convert to fraction form
    28,776,658.60/43,164,987.90 = 28,776,658.60/x
  3. Step 3: Cross multiply
    28,776,658.60x = 43,164,987.90 × 28,776,658.60
  4. Step 4: Simplify right side
    28,776,658.60x = 1,242,144,120,271,431
  5. Step 5: Solve for x
    x = 1,242,144,120,271,431/28,776,658.60
  6. Step 6: Final answer
    x = 43,164,987.90

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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.