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Finding the Fourth Proportional to 117,008.90, 175,513.35 and 115,259.30

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Solution

The fourth proportional to 117,008.90, 175,513.35 and 115,259.30 is: 172,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.90 : 175,513.35 = 115,259.30 : x
  2. Step 2: Convert to fraction form
    117,008.90/175,513.35 = 115,259.30/x
  3. Step 3: Cross multiply
    117,008.90x = 175,513.35 × 115,259.30
  4. Step 4: Simplify right side
    117,008.90x = 20,229,545,861.66
  5. Step 5: Solve for x
    x = 20,229,545,861.66/117,008.90
  6. Step 6: Final answer
    x = 172,888.95

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1.5x scale

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.