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Finding the Fourth Proportional to 263,547.89, 395,484.49 and 103,595.84

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Solution

The fourth proportional to 263,547.89, 395,484.49 and 103,595.84 is: 155,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,547.89 : 395,484.49 = 103,595.84 : x
  2. Step 2: Convert to fraction form
    263,547.89/395,484.49 = 103,595.84/x
  3. Step 3: Cross multiply
    263,547.89x = 395,484.49 × 103,595.84
  4. Step 4: Simplify right side
    263,547.89x = 40,970,545,971.10
  5. Step 5: Solve for x
    x = 40,970,545,971.10/263,547.89
  6. Step 6: Final answer
    x = 155,457.69

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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.