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Finding the Fourth Proportional to 185,051.52, 255,411.58 and 117,159

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Solution

The fourth proportional to 185,051.52, 255,411.58 and 117,159 is: 161,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,051.52 : 255,411.58 = 117,159 : x
  2. Step 2: Convert to fraction form
    185,051.52/255,411.58 = 117,159/x
  3. Step 3: Cross multiply
    185,051.52x = 255,411.58 × 117,159
  4. Step 4: Simplify right side
    185,051.52x = 29,923,765,301.22
  5. Step 5: Solve for x
    x = 29,923,765,301.22/185,051.52
  6. Step 6: Final answer
    x = 161,705.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.