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Finding the Fourth Proportional to 159,366.48, 219,925.42 and 87,746.55

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Solution

The fourth proportional to 159,366.48, 219,925.42 and 87,746.55 is: 121,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,366.48 : 219,925.42 = 87,746.55 : x
  2. Step 2: Convert to fraction form
    159,366.48/219,925.42 = 87,746.55/x
  3. Step 3: Cross multiply
    159,366.48x = 219,925.42 × 87,746.55
  4. Step 4: Simplify right side
    159,366.48x = 19,297,696,862.30
  5. Step 5: Solve for x
    x = 19,297,696,862.30/159,366.48
  6. Step 6: Final answer
    x = 121,090.06

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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.