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Finding the Fourth Proportional to 58,278,543.60, 81,709,400.40 and 58,278,543.60

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Solution

The fourth proportional to 58,278,543.60, 81,709,400.40 and 58,278,543.60 is: 81,709,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,278,543.60 : 81,709,400.40 = 58,278,543.60 : x
  2. Step 2: Convert to fraction form
    58,278,543.60/81,709,400.40 = 58,278,543.60/x
  3. Step 3: Cross multiply
    58,278,543.60x = 81,709,400.40 × 58,278,543.60
  4. Step 4: Simplify right side
    58,278,543.60x = 4,761,904,853,741,258
  5. Step 5: Solve for x
    x = 4,761,904,853,741,258/58,278,543.60
  6. Step 6: Final answer
    x = 81,709,400.40

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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.