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Finding the Fourth Proportional to 229,871.70, 344,807.55 and 103,572.45

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Solution

The fourth proportional to 229,871.70, 344,807.55 and 103,572.45 is: 155,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,871.70 : 344,807.55 = 103,572.45 : x
  2. Step 2: Convert to fraction form
    229,871.70/344,807.55 = 103,572.45/x
  3. Step 3: Cross multiply
    229,871.70x = 344,807.55 × 103,572.45
  4. Step 4: Simplify right side
    229,871.70x = 35,712,562,732.00
  5. Step 5: Solve for x
    x = 35,712,562,732.00/229,871.70
  6. Step 6: Final answer
    x = 155,358.68

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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.