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Finding the Fourth Proportional to 85,014,010.80, 127,332,059.40 and 85,014,010.80

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Solution

The fourth proportional to 85,014,010.80, 127,332,059.40 and 85,014,010.80 is: 127,332,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,014,010.80 : 127,332,059.40 = 85,014,010.80 : x
  2. Step 2: Convert to fraction form
    85,014,010.80/127,332,059.40 = 85,014,010.80/x
  3. Step 3: Cross multiply
    85,014,010.80x = 127,332,059.40 × 85,014,010.80
  4. Step 4: Simplify right side
    85,014,010.80x = 10,825,009,073,017,842
  5. Step 5: Solve for x
    x = 10,825,009,073,017,842/85,014,010.80
  6. Step 6: Final answer
    x = 127,332,059.40

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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.