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Finding the Fourth Proportional to 358,901.96, 538,436.66 and 118,998.31

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Solution

The fourth proportional to 358,901.96, 538,436.66 and 118,998.31 is: 178,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,901.96 : 538,436.66 = 118,998.31 : x
  2. Step 2: Convert to fraction form
    358,901.96/538,436.66 = 118,998.31/x
  3. Step 3: Cross multiply
    358,901.96x = 538,436.66 × 118,998.31
  4. Step 4: Simplify right side
    358,901.96x = 64,073,052,582.04
  5. Step 5: Solve for x
    x = 64,073,052,582.04/358,901.96
  6. Step 6: Final answer
    x = 178,525.22

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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.