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Finding the Fourth Proportional to 561,022.36, 841,720.34 and 181,955.45

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Solution

The fourth proportional to 561,022.36, 841,720.34 and 181,955.45 is: 272,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,022.36 : 841,720.34 = 181,955.45 : x
  2. Step 2: Convert to fraction form
    561,022.36/841,720.34 = 181,955.45/x
  3. Step 3: Cross multiply
    561,022.36x = 841,720.34 × 181,955.45
  4. Step 4: Simplify right side
    561,022.36x = 153,155,605,798.04
  5. Step 5: Solve for x
    x = 153,155,605,798.04/561,022.36
  6. Step 6: Final answer
    x = 272,993.77

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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.