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Finding the Fourth Proportional to 117,643.60, 176,206.20 and 104,510.80

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Solution

The fourth proportional to 117,643.60, 176,206.20 and 104,510.80 is: 156,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,643.60 : 176,206.20 = 104,510.80 : x
  2. Step 2: Convert to fraction form
    117,643.60/176,206.20 = 104,510.80/x
  3. Step 3: Cross multiply
    117,643.60x = 176,206.20 × 104,510.80
  4. Step 4: Simplify right side
    117,643.60x = 18,415,450,926.96
  5. Step 5: Solve for x
    x = 18,415,450,926.96/117,643.60
  6. Step 6: Final answer
    x = 156,535.94

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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.