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Finding the Fourth Proportional to 186,860,571.60, 280,206,876.60 and 71,806,875.60

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Solution

The fourth proportional to 186,860,571.60, 280,206,876.60 and 71,806,875.60 is: 107,678,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,860,571.60 : 280,206,876.60 = 71,806,875.60 : x
  2. Step 2: Convert to fraction form
    186,860,571.60/280,206,876.60 = 71,806,875.60/x
  3. Step 3: Cross multiply
    186,860,571.60x = 280,206,876.60 × 71,806,875.60
  4. Step 4: Simplify right side
    186,860,571.60x = 20,120,780,330,280,752
  5. Step 5: Solve for x
    x = 20,120,780,330,280,752/186,860,571.60
  6. Step 6: Final answer
    x = 107,678,041.22

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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.