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Finding the Fourth Proportional to 555,020.01, 832,378.82 and 155,636.01

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Solution

The fourth proportional to 555,020.01, 832,378.82 and 155,636.01 is: 233,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,020.01 : 832,378.82 = 155,636.01 : x
  2. Step 2: Convert to fraction form
    555,020.01/832,378.82 = 155,636.01/x
  3. Step 3: Cross multiply
    555,020.01x = 832,378.82 × 155,636.01
  4. Step 4: Simplify right side
    555,020.01x = 129,548,117,575.13
  5. Step 5: Solve for x
    x = 129,548,117,575.13/555,020.01
  6. Step 6: Final answer
    x = 233,411.62

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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.