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Finding the Fourth Proportional to 561,303.78, 841,854.24 and 161,846.34

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Solution

The fourth proportional to 561,303.78, 841,854.24 and 161,846.34 is: 242,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,303.78 : 841,854.24 = 161,846.34 : x
  2. Step 2: Convert to fraction form
    561,303.78/841,854.24 = 161,846.34/x
  3. Step 3: Cross multiply
    561,303.78x = 841,854.24 × 161,846.34
  4. Step 4: Simplify right side
    561,303.78x = 136,251,027,557.48
  5. Step 5: Solve for x
    x = 136,251,027,557.48/561,303.78
  6. Step 6: Final answer
    x = 242,740.26

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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.