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Finding the Fourth Proportional to 64,723,403.20, 97,085,104.80 and 16,854,347.20

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Solution

The fourth proportional to 64,723,403.20, 97,085,104.80 and 16,854,347.20 is: 25,281,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,723,403.20 : 97,085,104.80 = 16,854,347.20 : x
  2. Step 2: Convert to fraction form
    64,723,403.20/97,085,104.80 = 16,854,347.20/x
  3. Step 3: Cross multiply
    64,723,403.20x = 97,085,104.80 × 16,854,347.20
  4. Step 4: Simplify right side
    64,723,403.20x = 1,636,306,064,247,586.50
  5. Step 5: Solve for x
    x = 1,636,306,064,247,586.50/64,723,403.20
  6. Step 6: Final answer
    x = 25,281,520.80

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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.