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Finding the Fourth Proportional to 69,702,051.80, 104,553,077.70 and 46,743,800.60

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Solution

The fourth proportional to 69,702,051.80, 104,553,077.70 and 46,743,800.60 is: 70,115,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,702,051.80 : 104,553,077.70 = 46,743,800.60 : x
  2. Step 2: Convert to fraction form
    69,702,051.80/104,553,077.70 = 46,743,800.60/x
  3. Step 3: Cross multiply
    69,702,051.80x = 104,553,077.70 × 46,743,800.60
  4. Step 4: Simplify right side
    69,702,051.80x = 4,887,208,216,125,107
  5. Step 5: Solve for x
    x = 4,887,208,216,125,107/69,702,051.80
  6. Step 6: Final answer
    x = 70,115,700.90

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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.