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Finding the Fourth Proportional to 229,405.40, 344,108.10 and 124,429.40

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Solution

The fourth proportional to 229,405.40, 344,108.10 and 124,429.40 is: 186,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,405.40 : 344,108.10 = 124,429.40 : x
  2. Step 2: Convert to fraction form
    229,405.40/344,108.10 = 124,429.40/x
  3. Step 3: Cross multiply
    229,405.40x = 344,108.10 × 124,429.40
  4. Step 4: Simplify right side
    229,405.40x = 42,817,164,418.14
  5. Step 5: Solve for x
    x = 42,817,164,418.14/229,405.40
  6. Step 6: Final answer
    x = 186,644.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.