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Finding the Fourth Proportional to 545,001.17, 817,624.77 and 165,955.80

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Solution

The fourth proportional to 545,001.17, 817,624.77 and 165,955.80 is: 248,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,001.17 : 817,624.77 = 165,955.80 : x
  2. Step 2: Convert to fraction form
    545,001.17/817,624.77 = 165,955.80/x
  3. Step 3: Cross multiply
    545,001.17x = 817,624.77 × 165,955.80
  4. Step 4: Simplify right side
    545,001.17x = 135,689,572,805.17
  5. Step 5: Solve for x
    x = 135,689,572,805.17/545,001.17
  6. Step 6: Final answer
    x = 248,971.16

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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.