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Finding the Fourth Proportional to 316,093.52, 436,210.46 and 172,853.36

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Solution

The fourth proportional to 316,093.52, 436,210.46 and 172,853.36 is: 238,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,093.52 : 436,210.46 = 172,853.36 : x
  2. Step 2: Convert to fraction form
    316,093.52/436,210.46 = 172,853.36/x
  3. Step 3: Cross multiply
    316,093.52x = 436,210.46 × 172,853.36
  4. Step 4: Simplify right side
    316,093.52x = 75,400,443,678.15
  5. Step 5: Solve for x
    x = 75,400,443,678.15/316,093.52
  6. Step 6: Final answer
    x = 238,538.40

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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.