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Finding the Fourth Proportional to 56,668,909.40, 79,487,638.60 and 56,668,909.40

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Solution

The fourth proportional to 56,668,909.40, 79,487,638.60 and 56,668,909.40 is: 79,487,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,668,909.40 : 79,487,638.60 = 56,668,909.40 : x
  2. Step 2: Convert to fraction form
    56,668,909.40/79,487,638.60 = 56,668,909.40/x
  3. Step 3: Cross multiply
    56,668,909.40x = 79,487,638.60 × 56,668,909.40
  4. Step 4: Simplify right side
    56,668,909.40x = 4,504,477,790,243,342
  5. Step 5: Solve for x
    x = 4,504,477,790,243,342/56,668,909.40
  6. Step 6: Final answer
    x = 79,487,638.60

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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.