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Finding the Fourth Proportional to 38,856,014.40, 54,478,046.40 and 38,856,014.40

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Solution

The fourth proportional to 38,856,014.40, 54,478,046.40 and 38,856,014.40 is: 54,478,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,856,014.40 : 54,478,046.40 = 38,856,014.40 : x
  2. Step 2: Convert to fraction form
    38,856,014.40/54,478,046.40 = 38,856,014.40/x
  3. Step 3: Cross multiply
    38,856,014.40x = 54,478,046.40 × 38,856,014.40
  4. Step 4: Simplify right side
    38,856,014.40x = 2,116,799,755,402,268
  5. Step 5: Solve for x
    x = 2,116,799,755,402,268/38,856,014.40
  6. Step 6: Final answer
    x = 54,478,046.40

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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.