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Finding the Fourth Proportional to 411,244.80, 616,636.80 and 174,547.20

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Solution

The fourth proportional to 411,244.80, 616,636.80 and 174,547.20 is: 261,723.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,244.80 : 616,636.80 = 174,547.20 : x
  2. Step 2: Convert to fraction form
    411,244.80/616,636.80 = 174,547.20/x
  3. Step 3: Cross multiply
    411,244.80x = 616,636.80 × 174,547.20
  4. Step 4: Simplify right side
    411,244.80x = 107,632,226,856.96
  5. Step 5: Solve for x
    x = 107,632,226,856.96/411,244.80
  6. Step 6: Final answer
    x = 261,723.01

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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.