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Finding the Fourth Proportional to 235,663.92, 325,214.66 and 128,234.36

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Solution

The fourth proportional to 235,663.92, 325,214.66 and 128,234.36 is: 176,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,663.92 : 325,214.66 = 128,234.36 : x
  2. Step 2: Convert to fraction form
    235,663.92/325,214.66 = 128,234.36/x
  3. Step 3: Cross multiply
    235,663.92x = 325,214.66 × 128,234.36
  4. Step 4: Simplify right side
    235,663.92x = 41,703,693,787.72
  5. Step 5: Solve for x
    x = 41,703,693,787.72/235,663.92
  6. Step 6: Final answer
    x = 176,962.57

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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.