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Finding the Fourth Proportional to 124,502.96, 171,828.42 and 69,317.84

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Solution

The fourth proportional to 124,502.96, 171,828.42 and 69,317.84 is: 95,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,502.96 : 171,828.42 = 69,317.84 : x
  2. Step 2: Convert to fraction form
    124,502.96/171,828.42 = 69,317.84/x
  3. Step 3: Cross multiply
    124,502.96x = 171,828.42 × 69,317.84
  4. Step 4: Simplify right side
    124,502.96x = 11,910,774,925.01
  5. Step 5: Solve for x
    x = 11,910,774,925.01/124,502.96
  6. Step 6: Final answer
    x = 95,666.60

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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.