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Finding the Fourth Proportional to 56,374,928.80, 79,084,152.80 and 56,374,928.80

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Solution

The fourth proportional to 56,374,928.80, 79,084,152.80 and 56,374,928.80 is: 79,084,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,374,928.80 : 79,084,152.80 = 56,374,928.80 : x
  2. Step 2: Convert to fraction form
    56,374,928.80/79,084,152.80 = 56,374,928.80/x
  3. Step 3: Cross multiply
    56,374,928.80x = 79,084,152.80 × 56,374,928.80
  4. Step 4: Simplify right side
    56,374,928.80x = 4,458,363,483,308,320
  5. Step 5: Solve for x
    x = 4,458,363,483,308,320/56,374,928.80
  6. Step 6: Final answer
    x = 79,084,152.80

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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.