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Finding the Fourth Proportional to 130,476.80, 195,715.20 and 118,035.20

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Solution

The fourth proportional to 130,476.80, 195,715.20 and 118,035.20 is: 177,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,476.80 : 195,715.20 = 118,035.20 : x
  2. Step 2: Convert to fraction form
    130,476.80/195,715.20 = 118,035.20/x
  3. Step 3: Cross multiply
    130,476.80x = 195,715.20 × 118,035.20
  4. Step 4: Simplify right side
    130,476.80x = 23,101,282,775.04
  5. Step 5: Solve for x
    x = 23,101,282,775.04/130,476.80
  6. Step 6: Final answer
    x = 177,052.80

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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.