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Finding the Fourth Proportional to 70,455,269.60, 105,682,904.40 and 59,705,727.20

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Solution

The fourth proportional to 70,455,269.60, 105,682,904.40 and 59,705,727.20 is: 89,558,590.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455,269.60 : 105,682,904.40 = 59,705,727.20 : x
  2. Step 2: Convert to fraction form
    70,455,269.60/105,682,904.40 = 59,705,727.20/x
  3. Step 3: Cross multiply
    70,455,269.60x = 105,682,904.40 × 59,705,727.20
  4. Step 4: Simplify right side
    70,455,269.60x = 6,309,874,659,810,080
  5. Step 5: Solve for x
    x = 6,309,874,659,810,080/70,455,269.60
  6. Step 6: Final answer
    x = 89,558,590.80

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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.