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Finding the Fourth Proportional to 55,295,999.60, 82,943,999.40 and 40,963,276.40

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Solution

The fourth proportional to 55,295,999.60, 82,943,999.40 and 40,963,276.40 is: 61,444,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,295,999.60 : 82,943,999.40 = 40,963,276.40 : x
  2. Step 2: Convert to fraction form
    55,295,999.60/82,943,999.40 = 40,963,276.40/x
  3. Step 3: Cross multiply
    55,295,999.60x = 82,943,999.40 × 40,963,276.40
  4. Step 4: Simplify right side
    55,295,999.60x = 3,397,657,973,143,634.50
  5. Step 5: Solve for x
    x = 3,397,657,973,143,634.50/55,295,999.60
  6. Step 6: Final answer
    x = 61,444,914.60

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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.