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Finding the Fourth Proportional to 73,872,609.70, 110,808,914.55 and 43,261,608.10

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Solution

The fourth proportional to 73,872,609.70, 110,808,914.55 and 43,261,608.10 is: 64,892,412.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,609.70 : 110,808,914.55 = 43,261,608.10 : x
  2. Step 2: Convert to fraction form
    73,872,609.70/110,808,914.55 = 43,261,608.10/x
  3. Step 3: Cross multiply
    73,872,609.70x = 110,808,914.55 × 43,261,608.10
  4. Step 4: Simplify right side
    73,872,609.70x = 4,793,771,835,248,488
  5. Step 5: Solve for x
    x = 4,793,771,835,248,488/73,872,609.70
  6. Step 6: Final answer
    x = 64,892,412.15

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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.