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Finding the Fourth Proportional to 245,690.72, 368,088.96 and 170,652.32

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Solution

The fourth proportional to 245,690.72, 368,088.96 and 170,652.32 is: 255,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,690.72 : 368,088.96 = 170,652.32 : x
  2. Step 2: Convert to fraction form
    245,690.72/368,088.96 = 170,652.32/x
  3. Step 3: Cross multiply
    245,690.72x = 368,088.96 × 170,652.32
  4. Step 4: Simplify right side
    245,690.72x = 62,815,234,990.39
  5. Step 5: Solve for x
    x = 62,815,234,990.39/245,690.72
  6. Step 6: Final answer
    x = 255,667.92

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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.