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Finding the Fourth Proportional to 106,889,901.60, 160,334,852.40 and 91,584,400.80

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Solution

The fourth proportional to 106,889,901.60, 160,334,852.40 and 91,584,400.80 is: 137,376,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,889,901.60 : 160,334,852.40 = 91,584,400.80 : x
  2. Step 2: Convert to fraction form
    106,889,901.60/160,334,852.40 = 91,584,400.80/x
  3. Step 3: Cross multiply
    106,889,901.60x = 160,334,852.40 × 91,584,400.80
  4. Step 4: Simplify right side
    106,889,901.60x = 14,684,171,384,410,442
  5. Step 5: Solve for x
    x = 14,684,171,384,410,442/106,889,901.60
  6. Step 6: Final answer
    x = 137,376,601.20

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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.