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Finding the Fourth Proportional to 362,707.80, 544,061.70 and 126,074.40

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Solution

The fourth proportional to 362,707.80, 544,061.70 and 126,074.40 is: 189,111.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,707.80 : 544,061.70 = 126,074.40 : x
  2. Step 2: Convert to fraction form
    362,707.80/544,061.70 = 126,074.40/x
  3. Step 3: Cross multiply
    362,707.80x = 544,061.70 × 126,074.40
  4. Step 4: Simplify right side
    362,707.80x = 68,592,252,390.48
  5. Step 5: Solve for x
    x = 68,592,252,390.48/362,707.80
  6. Step 6: Final answer
    x = 189,111.60

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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.