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Finding the Fourth Proportional to 70,956,502.80, 106,403,650.20 and 32,605,270.80

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Solution

The fourth proportional to 70,956,502.80, 106,403,650.20 and 32,605,270.80 is: 48,893,613.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,502.80 : 106,403,650.20 = 32,605,270.80 : x
  2. Step 2: Convert to fraction form
    70,956,502.80/106,403,650.20 = 32,605,270.80/x
  3. Step 3: Cross multiply
    70,956,502.80x = 106,403,650.20 × 32,605,270.80
  4. Step 4: Simplify right side
    70,956,502.80x = 3,469,319,828,879,474.50
  5. Step 5: Solve for x
    x = 3,469,319,828,879,474.50/70,956,502.80
  6. Step 6: Final answer
    x = 48,893,613.58

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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.