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Finding the Fourth Proportional to 173,890,216.40, 260,866,817.40 and 87,410,987.60

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Solution

The fourth proportional to 173,890,216.40, 260,866,817.40 and 87,410,987.60 is: 131,132,312.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,890,216.40 : 260,866,817.40 = 87,410,987.60 : x
  2. Step 2: Convert to fraction form
    173,890,216.40/260,866,817.40 = 87,410,987.60/x
  3. Step 3: Cross multiply
    173,890,216.40x = 260,866,817.40 × 87,410,987.60
  4. Step 4: Simplify right side
    173,890,216.40x = 22,802,626,141,002,864
  5. Step 5: Solve for x
    x = 22,802,626,141,002,864/173,890,216.40
  6. Step 6: Final answer
    x = 131,132,312.17

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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.