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Finding the Fourth Proportional to 134,608.80, 201,913.20 and 115,909.95

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Solution

The fourth proportional to 134,608.80, 201,913.20 and 115,909.95 is: 173,864.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,608.80 : 201,913.20 = 115,909.95 : x
  2. Step 2: Convert to fraction form
    134,608.80/201,913.20 = 115,909.95/x
  3. Step 3: Cross multiply
    134,608.80x = 201,913.20 × 115,909.95
  4. Step 4: Simplify right side
    134,608.80x = 23,403,748,916.34
  5. Step 5: Solve for x
    x = 23,403,748,916.34/134,608.80
  6. Step 6: Final answer
    x = 173,864.93

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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.