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Finding the Fourth Proportional to 245,805.42, 368,710.96 and 103,674.72

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Solution

The fourth proportional to 245,805.42, 368,710.96 and 103,674.72 is: 155,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,805.42 : 368,710.96 = 103,674.72 : x
  2. Step 2: Convert to fraction form
    245,805.42/368,710.96 = 103,674.72/x
  3. Step 3: Cross multiply
    245,805.42x = 368,710.96 × 103,674.72
  4. Step 4: Simplify right side
    245,805.42x = 38,226,005,538.93
  5. Step 5: Solve for x
    x = 38,226,005,538.93/245,805.42
  6. Step 6: Final answer
    x = 155,513.27

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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.