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Finding the Fourth Proportional to 117,008.80, 175,513.20 and 112,088.05

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Solution

The fourth proportional to 117,008.80, 175,513.20 and 112,088.05 is: 168,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.80 : 175,513.20 = 112,088.05 : x
  2. Step 2: Convert to fraction form
    117,008.80/175,513.20 = 112,088.05/x
  3. Step 3: Cross multiply
    117,008.80x = 175,513.20 × 112,088.05
  4. Step 4: Simplify right side
    117,008.80x = 19,672,932,337.26
  5. Step 5: Solve for x
    x = 19,672,932,337.26/117,008.80
  6. Step 6: Final answer
    x = 168,132.08

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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.