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Finding the Fourth Proportional to 310,068.77, 427,889.45 and 174,103.79

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Solution

The fourth proportional to 310,068.77, 427,889.45 and 174,103.79 is: 240,260.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,068.77 : 427,889.45 = 174,103.79 : x
  2. Step 2: Convert to fraction form
    310,068.77/427,889.45 = 174,103.79/x
  3. Step 3: Cross multiply
    310,068.77x = 427,889.45 × 174,103.79
  4. Step 4: Simplify right side
    310,068.77x = 74,497,173,241.83
  5. Step 5: Solve for x
    x = 74,497,173,241.83/310,068.77
  6. Step 6: Final answer
    x = 240,260.17

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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.