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Finding the Fourth Proportional to 56,170,726.60, 78,865,765.40 and 56,170,726.60

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Solution

The fourth proportional to 56,170,726.60, 78,865,765.40 and 56,170,726.60 is: 78,865,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,170,726.60 : 78,865,765.40 = 56,170,726.60 : x
  2. Step 2: Convert to fraction form
    56,170,726.60/78,865,765.40 = 56,170,726.60/x
  3. Step 3: Cross multiply
    56,170,726.60x = 78,865,765.40 × 56,170,726.60
  4. Step 4: Simplify right side
    56,170,726.60x = 4,429,947,346,383,140
  5. Step 5: Solve for x
    x = 4,429,947,346,383,140/56,170,726.60
  6. Step 6: Final answer
    x = 78,865,765.40

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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.