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Finding the Fourth Proportional to 229,790.72, 344,686.26 and 72,031.46

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Solution

The fourth proportional to 229,790.72, 344,686.26 and 72,031.46 is: 108,047.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,790.72 : 344,686.26 = 72,031.46 : x
  2. Step 2: Convert to fraction form
    229,790.72/344,686.26 = 72,031.46/x
  3. Step 3: Cross multiply
    229,790.72x = 344,686.26 × 72,031.46
  4. Step 4: Simplify right side
    229,790.72x = 24,828,254,549.74
  5. Step 5: Solve for x
    x = 24,828,254,549.74/229,790.72
  6. Step 6: Final answer
    x = 108,047.25

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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.