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Finding the Fourth Proportional to 168,085.60, 251,782.80 and 115,554.40

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Solution

The fourth proportional to 168,085.60, 251,782.80 and 115,554.40 is: 173,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,085.60 : 251,782.80 = 115,554.40 : x
  2. Step 2: Convert to fraction form
    168,085.60/251,782.80 = 115,554.40/x
  3. Step 3: Cross multiply
    168,085.60x = 251,782.80 × 115,554.40
  4. Step 4: Simplify right side
    168,085.60x = 29,094,610,384.32
  5. Step 5: Solve for x
    x = 29,094,610,384.32/168,085.60
  6. Step 6: Final answer
    x = 173,094.01

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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.