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Finding the Fourth Proportional to 245,776.65, 368,808.27 and 103,613.22

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Solution

The fourth proportional to 245,776.65, 368,808.27 and 103,613.22 is: 155,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,776.65 : 368,808.27 = 103,613.22 : x
  2. Step 2: Convert to fraction form
    245,776.65/368,808.27 = 103,613.22/x
  3. Step 3: Cross multiply
    245,776.65x = 368,808.27 × 103,613.22
  4. Step 4: Simplify right side
    245,776.65x = 38,213,412,417.33
  5. Step 5: Solve for x
    x = 38,213,412,417.33/245,776.65
  6. Step 6: Final answer
    x = 155,480.24

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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.