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Finding the Fourth Proportional to 576,727.36, 865,173.76 and 177,401.81

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Solution

The fourth proportional to 576,727.36, 865,173.76 and 177,401.81 is: 266,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,727.36 : 865,173.76 = 177,401.81 : x
  2. Step 2: Convert to fraction form
    576,727.36/865,173.76 = 177,401.81/x
  3. Step 3: Cross multiply
    576,727.36x = 865,173.76 × 177,401.81
  4. Step 4: Simplify right side
    576,727.36x = 153,483,390,988.51
  5. Step 5: Solve for x
    x = 153,483,390,988.51/576,727.36
  6. Step 6: Final answer
    x = 266,128.16

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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.