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Finding the Fourth Proportional to 129,776.52, 193,726.11 and 114,030.12

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Solution

The fourth proportional to 129,776.52, 193,726.11 and 114,030.12 is: 170,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,776.52 : 193,726.11 = 114,030.12 : x
  2. Step 2: Convert to fraction form
    129,776.52/193,726.11 = 114,030.12/x
  3. Step 3: Cross multiply
    129,776.52x = 193,726.11 × 114,030.12
  4. Step 4: Simplify right side
    129,776.52x = 22,090,611,570.43
  5. Step 5: Solve for x
    x = 22,090,611,570.43/129,776.52
  6. Step 6: Final answer
    x = 170,220.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.