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Finding the Fourth Proportional to 101,888,107.20, 152,832,160.80 and 65,608,401.60

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Solution

The fourth proportional to 101,888,107.20, 152,832,160.80 and 65,608,401.60 is: 98,412,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,888,107.20 : 152,832,160.80 = 65,608,401.60 : x
  2. Step 2: Convert to fraction form
    101,888,107.20/152,832,160.80 = 65,608,401.60/x
  3. Step 3: Cross multiply
    101,888,107.20x = 152,832,160.80 × 65,608,401.60
  4. Step 4: Simplify right side
    101,888,107.20x = 10,027,073,783,162,178
  5. Step 5: Solve for x
    x = 10,027,073,783,162,178/101,888,107.20
  6. Step 6: Final answer
    x = 98,412,602.40

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1.5x scale

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.