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Finding the Fourth Proportional to 79,713,088.80, 119,569,633.20 and 25,860,400.80

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Solution

The fourth proportional to 79,713,088.80, 119,569,633.20 and 25,860,400.80 is: 38,790,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,088.80 : 119,569,633.20 = 25,860,400.80 : x
  2. Step 2: Convert to fraction form
    79,713,088.80/119,569,633.20 = 25,860,400.80/x
  3. Step 3: Cross multiply
    79,713,088.80x = 119,569,633.20 × 25,860,400.80
  4. Step 4: Simplify right side
    79,713,088.80x = 3,092,118,638,060,986.50
  5. Step 5: Solve for x
    x = 3,092,118,638,060,986.50/79,713,088.80
  6. Step 6: Final answer
    x = 38,790,601.20

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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.