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Finding the Fourth Proportional to 310,127.01, 427,985.61 and 174,184.92

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Solution

The fourth proportional to 310,127.01, 427,985.61 and 174,184.92 is: 240,380.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,127.01 : 427,985.61 = 174,184.92 : x
  2. Step 2: Convert to fraction form
    310,127.01/427,985.61 = 174,184.92/x
  3. Step 3: Cross multiply
    310,127.01x = 427,985.61 × 174,184.92
  4. Step 4: Simplify right side
    310,127.01x = 74,548,639,239.00
  5. Step 5: Solve for x
    x = 74,548,639,239.00/310,127.01
  6. Step 6: Final answer
    x = 240,380.99

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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.