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Finding the Fourth Proportional to 104,210.34, 143,809.32 and 56,463.54

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Solution

The fourth proportional to 104,210.34, 143,809.32 and 56,463.54 is: 77,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,210.34 : 143,809.32 = 56,463.54 : x
  2. Step 2: Convert to fraction form
    104,210.34/143,809.32 = 56,463.54/x
  3. Step 3: Cross multiply
    104,210.34x = 143,809.32 × 56,463.54
  4. Step 4: Simplify right side
    104,210.34x = 8,119,983,292.19
  5. Step 5: Solve for x
    x = 8,119,983,292.19/104,210.34
  6. Step 6: Final answer
    x = 77,919.17

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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.