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Finding the Fourth Proportional to 104,616.34, 144,371.48 and 56,869.76

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Solution

The fourth proportional to 104,616.34, 144,371.48 and 56,869.76 is: 78,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,616.34 : 144,371.48 = 56,869.76 : x
  2. Step 2: Convert to fraction form
    104,616.34/144,371.48 = 56,869.76/x
  3. Step 3: Cross multiply
    104,616.34x = 144,371.48 × 56,869.76
  4. Step 4: Simplify right side
    104,616.34x = 8,210,371,495.02
  5. Step 5: Solve for x
    x = 8,210,371,495.02/104,616.34
  6. Step 6: Final answer
    x = 78,480.78

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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.