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Finding the Fourth Proportional to 104,210.20, 143,810.20 and 56,463.54

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Solution

The fourth proportional to 104,210.20, 143,810.20 and 56,463.54 is: 77,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,210.20 : 143,810.20 = 56,463.54 : x
  2. Step 2: Convert to fraction form
    104,210.20/143,810.20 = 56,463.54/x
  3. Step 3: Cross multiply
    104,210.20x = 143,810.20 × 56,463.54
  4. Step 4: Simplify right side
    104,210.20x = 8,120,032,980.11
  5. Step 5: Solve for x
    x = 8,120,032,980.11/104,210.20
  6. Step 6: Final answer
    x = 77,919.75

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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.