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Finding the Fourth Proportional to 175,418.67, 242,140.01 and 103,798.54

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Solution

The fourth proportional to 175,418.67, 242,140.01 and 103,798.54 is: 143,278.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,418.67 : 242,140.01 = 103,798.54 : x
  2. Step 2: Convert to fraction form
    175,418.67/242,140.01 = 103,798.54/x
  3. Step 3: Cross multiply
    175,418.67x = 242,140.01 × 103,798.54
  4. Step 4: Simplify right side
    175,418.67x = 25,133,779,513.59
  5. Step 5: Solve for x
    x = 25,133,779,513.59/175,418.67
  6. Step 6: Final answer
    x = 143,278.82

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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.