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Finding the Fourth Proportional to 125,842,682.40, 188,764,023.60 and 39,607,522.80

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Solution

The fourth proportional to 125,842,682.40, 188,764,023.60 and 39,607,522.80 is: 59,411,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,842,682.40 : 188,764,023.60 = 39,607,522.80 : x
  2. Step 2: Convert to fraction form
    125,842,682.40/188,764,023.60 = 39,607,522.80/x
  3. Step 3: Cross multiply
    125,842,682.40x = 188,764,023.60 × 39,607,522.80
  4. Step 4: Simplify right side
    125,842,682.40x = 7,476,475,368,556,737
  5. Step 5: Solve for x
    x = 7,476,475,368,556,737/125,842,682.40
  6. Step 6: Final answer
    x = 59,411,284.20

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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.