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Finding the Fourth Proportional to 66,857,431.20, 93,487,029.60 and 66,857,431.20

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Solution

The fourth proportional to 66,857,431.20, 93,487,029.60 and 66,857,431.20 is: 93,487,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857,431.20 : 93,487,029.60 = 66,857,431.20 : x
  2. Step 2: Convert to fraction form
    66,857,431.20/93,487,029.60 = 66,857,431.20/x
  3. Step 3: Cross multiply
    66,857,431.20x = 93,487,029.60 × 66,857,431.20
  4. Step 4: Simplify right side
    66,857,431.20x = 6,250,302,649,574,363
  5. Step 5: Solve for x
    x = 6,250,302,649,574,363/66,857,431.20
  6. Step 6: Final answer
    x = 93,487,029.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.