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Finding the Fourth Proportional to 58,093,805.60, 87,140,708.40 and 55,448,410.40

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Solution

The fourth proportional to 58,093,805.60, 87,140,708.40 and 55,448,410.40 is: 83,172,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,093,805.60 : 87,140,708.40 = 55,448,410.40 : x
  2. Step 2: Convert to fraction form
    58,093,805.60/87,140,708.40 = 55,448,410.40/x
  3. Step 3: Cross multiply
    58,093,805.60x = 87,140,708.40 × 55,448,410.40
  4. Step 4: Simplify right side
    58,093,805.60x = 4,831,813,761,909,928
  5. Step 5: Solve for x
    x = 4,831,813,761,909,928/58,093,805.60
  6. Step 6: Final answer
    x = 83,172,615.60

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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.