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Finding the Fourth Proportional to 159,714.79, 239,520.35 and 53,070.11

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Solution

The fourth proportional to 159,714.79, 239,520.35 and 53,070.11 is: 79,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,714.79 : 239,520.35 = 53,070.11 : x
  2. Step 2: Convert to fraction form
    159,714.79/239,520.35 = 53,070.11/x
  3. Step 3: Cross multiply
    159,714.79x = 239,520.35 × 53,070.11
  4. Step 4: Simplify right side
    159,714.79x = 12,711,370,124.14
  5. Step 5: Solve for x
    x = 12,711,370,124.14/159,714.79
  6. Step 6: Final answer
    x = 79,587.93

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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.