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Finding the Fourth Proportional to 157,723.84, 217,606.80 and 104,035.60

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Solution

The fourth proportional to 157,723.84, 217,606.80 and 104,035.60 is: 143,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,723.84 : 217,606.80 = 104,035.60 : x
  2. Step 2: Convert to fraction form
    157,723.84/217,606.80 = 104,035.60/x
  3. Step 3: Cross multiply
    157,723.84x = 217,606.80 × 104,035.60
  4. Step 4: Simplify right side
    157,723.84x = 22,638,854,002.08
  5. Step 5: Solve for x
    x = 22,638,854,002.08/157,723.84
  6. Step 6: Final answer
    x = 143,534.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.