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Finding the Fourth Proportional to 104,657.56, 144,430.17 and 56,913.70

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Solution

The fourth proportional to 104,657.56, 144,430.17 and 56,913.70 is: 78,542.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,657.56 : 144,430.17 = 56,913.70 : x
  2. Step 2: Convert to fraction form
    104,657.56/144,430.17 = 56,913.70/x
  3. Step 3: Cross multiply
    104,657.56x = 144,430.17 × 56,913.70
  4. Step 4: Simplify right side
    104,657.56x = 8,220,055,366.33
  5. Step 5: Solve for x
    x = 8,220,055,366.33/104,657.56
  6. Step 6: Final answer
    x = 78,542.39

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1.5x scale

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.