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Finding the Fourth Proportional to 104,883,978.79, 144,767,805.86 and 61,956,856.22

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Solution

The fourth proportional to 104,883,978.79, 144,767,805.86 and 61,956,856.22 is: 85,516,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,883,978.79 : 144,767,805.86 = 61,956,856.22 : x
  2. Step 2: Convert to fraction form
    104,883,978.79/144,767,805.86 = 61,956,856.22/x
  3. Step 3: Cross multiply
    104,883,978.79x = 144,767,805.86 × 61,956,856.22
  4. Step 4: Simplify right side
    104,883,978.79x = 8,969,358,132,643,108
  5. Step 5: Solve for x
    x = 8,969,358,132,643,108/104,883,978.79
  6. Step 6: Final answer
    x = 85,516,951.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.