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Finding the Fourth Proportional to 69,692,556.60, 104,538,834.90 and 42,482,777.40

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Solution

The fourth proportional to 69,692,556.60, 104,538,834.90 and 42,482,777.40 is: 63,724,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,692,556.60 : 104,538,834.90 = 42,482,777.40 : x
  2. Step 2: Convert to fraction form
    69,692,556.60/104,538,834.90 = 42,482,777.40/x
  3. Step 3: Cross multiply
    69,692,556.60x = 104,538,834.90 × 42,482,777.40
  4. Step 4: Simplify right side
    69,692,556.60x = 4,441,100,052,712,051.50
  5. Step 5: Solve for x
    x = 4,441,100,052,712,051.50/69,692,556.60
  6. Step 6: Final answer
    x = 63,724,166.10

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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.