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Finding the Fourth Proportional to 352,491.66, 528,741.84 and 103,178.70

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Solution

The fourth proportional to 352,491.66, 528,741.84 and 103,178.70 is: 154,769.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,491.66 : 528,741.84 = 103,178.70 : x
  2. Step 2: Convert to fraction form
    352,491.66/528,741.84 = 103,178.70/x
  3. Step 3: Cross multiply
    352,491.66x = 528,741.84 × 103,178.70
  4. Step 4: Simplify right side
    352,491.66x = 54,554,895,686.81
  5. Step 5: Solve for x
    x = 54,554,895,686.81/352,491.66
  6. Step 6: Final answer
    x = 154,769.32

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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.