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Finding the Fourth Proportional to 356,674.16, 535,081.18 and 132,036.32

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Solution

The fourth proportional to 356,674.16, 535,081.18 and 132,036.32 is: 198,080.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,674.16 : 535,081.18 = 132,036.32 : x
  2. Step 2: Convert to fraction form
    356,674.16/535,081.18 = 132,036.32/x
  3. Step 3: Cross multiply
    356,674.16x = 535,081.18 × 132,036.32
  4. Step 4: Simplify right side
    356,674.16x = 70,650,149,908.46
  5. Step 5: Solve for x
    x = 70,650,149,908.46/356,674.16
  6. Step 6: Final answer
    x = 198,080.37

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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.