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Finding the Fourth Proportional to 66,734,405.40, 100,101,608.10 and 28,397,170.20

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Solution

The fourth proportional to 66,734,405.40, 100,101,608.10 and 28,397,170.20 is: 42,595,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734,405.40 : 100,101,608.10 = 28,397,170.20 : x
  2. Step 2: Convert to fraction form
    66,734,405.40/100,101,608.10 = 28,397,170.20/x
  3. Step 3: Cross multiply
    66,734,405.40x = 100,101,608.10 × 28,397,170.20
  4. Step 4: Simplify right side
    66,734,405.40x = 2,842,602,402,509,398.50
  5. Step 5: Solve for x
    x = 2,842,602,402,509,398.50/66,734,405.40
  6. Step 6: Final answer
    x = 42,595,755.30

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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.