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Finding the Fourth Proportional to 74,547.96, 111,821.94 and 51,103.32

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Solution

The fourth proportional to 74,547.96, 111,821.94 and 51,103.32 is: 76,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,547.96 : 111,821.94 = 51,103.32 : x
  2. Step 2: Convert to fraction form
    74,547.96/111,821.94 = 51,103.32/x
  3. Step 3: Cross multiply
    74,547.96x = 111,821.94 × 51,103.32
  4. Step 4: Simplify right side
    74,547.96x = 5,714,472,382.84
  5. Step 5: Solve for x
    x = 5,714,472,382.84/74,547.96
  6. Step 6: Final answer
    x = 76,654.98

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1.5x scale

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.