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Finding the Fourth Proportional to 185,703.86, 256,511.72 and 153,568.29

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Solution

The fourth proportional to 185,703.86, 256,511.72 and 153,568.29 is: 212,123.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,703.86 : 256,511.72 = 153,568.29 : x
  2. Step 2: Convert to fraction form
    185,703.86/256,511.72 = 153,568.29/x
  3. Step 3: Cross multiply
    185,703.86x = 256,511.72 × 153,568.29
  4. Step 4: Simplify right side
    185,703.86x = 39,392,066,324.28
  5. Step 5: Solve for x
    x = 39,392,066,324.28/185,703.86
  6. Step 6: Final answer
    x = 212,123.03

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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.