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Finding the Fourth Proportional to 245,925.18, 368,814.87 and 105,651

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Solution

The fourth proportional to 245,925.18, 368,814.87 and 105,651 is: 158,445.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,925.18 : 368,814.87 = 105,651 : x
  2. Step 2: Convert to fraction form
    245,925.18/368,814.87 = 105,651/x
  3. Step 3: Cross multiply
    245,925.18x = 368,814.87 × 105,651
  4. Step 4: Simplify right side
    245,925.18x = 38,965,659,830.37
  5. Step 5: Solve for x
    x = 38,965,659,830.37/245,925.18
  6. Step 6: Final answer
    x = 158,445.18

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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.