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Finding the Fourth Proportional to 104,711.48, 144,501.70 and 56,964.70

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Solution

The fourth proportional to 104,711.48, 144,501.70 and 56,964.70 is: 78,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,711.48 : 144,501.70 = 56,964.70 : x
  2. Step 2: Convert to fraction form
    104,711.48/144,501.70 = 56,964.70/x
  3. Step 3: Cross multiply
    104,711.48x = 144,501.70 × 56,964.70
  4. Step 4: Simplify right side
    104,711.48x = 8,231,495,989.99
  5. Step 5: Solve for x
    x = 8,231,495,989.99/104,711.48
  6. Step 6: Final answer
    x = 78,611.21

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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.