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Finding the Fourth Proportional to 88,014,012.80, 132,021,019.20 and 80,077,827.20

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Solution

The fourth proportional to 88,014,012.80, 132,021,019.20 and 80,077,827.20 is: 120,116,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,014,012.80 : 132,021,019.20 = 80,077,827.20 : x
  2. Step 2: Convert to fraction form
    88,014,012.80/132,021,019.20 = 80,077,827.20/x
  3. Step 3: Cross multiply
    88,014,012.80x = 132,021,019.20 × 80,077,827.20
  4. Step 4: Simplify right side
    88,014,012.80x = 10,571,956,362,265,482
  5. Step 5: Solve for x
    x = 10,571,956,362,265,482/88,014,012.80
  6. Step 6: Final answer
    x = 120,116,740.80

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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.