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Finding the Fourth Proportional to 561,291.36, 841,664.16 and 187,188

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Solution

The fourth proportional to 561,291.36, 841,664.16 and 187,188 is: 280,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,291.36 : 841,664.16 = 187,188 : x
  2. Step 2: Convert to fraction form
    561,291.36/841,664.16 = 187,188/x
  3. Step 3: Cross multiply
    561,291.36x = 841,664.16 × 187,188
  4. Step 4: Simplify right side
    561,291.36x = 157,549,430,782.08
  5. Step 5: Solve for x
    x = 157,549,430,782.08/561,291.36
  6. Step 6: Final answer
    x = 280,691.00

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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.