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Finding the Fourth Proportional to 104,256.54, 143,874.28 and 56,509.84

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Solution

The fourth proportional to 104,256.54, 143,874.28 and 56,509.84 is: 77,983.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,256.54 : 143,874.28 = 56,509.84 : x
  2. Step 2: Convert to fraction form
    104,256.54/143,874.28 = 56,509.84/x
  3. Step 3: Cross multiply
    104,256.54x = 143,874.28 × 56,509.84
  4. Step 4: Simplify right side
    104,256.54x = 8,130,312,542.92
  5. Step 5: Solve for x
    x = 8,130,312,542.92/104,256.54
  6. Step 6: Final answer
    x = 77,983.72

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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.