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Finding the Fourth Proportional to 268,920,031.60, 403,380,047.40 and 268,920,031.60

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Solution

The fourth proportional to 268,920,031.60, 403,380,047.40 and 268,920,031.60 is: 403,380,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,920,031.60 : 403,380,047.40 = 268,920,031.60 : x
  2. Step 2: Convert to fraction form
    268,920,031.60/403,380,047.40 = 268,920,031.60/x
  3. Step 3: Cross multiply
    268,920,031.60x = 403,380,047.40 × 268,920,031.60
  4. Step 4: Simplify right side
    268,920,031.60x = 108,476,975,093,617,504
  5. Step 5: Solve for x
    x = 108,476,975,093,617,504/268,920,031.60
  6. Step 6: Final answer
    x = 403,380,047.40

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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.