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Finding the Fourth Proportional to 372,133.40, 558,200.10 and 185,509.40

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Solution

The fourth proportional to 372,133.40, 558,200.10 and 185,509.40 is: 278,264.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,133.40 : 558,200.10 = 185,509.40 : x
  2. Step 2: Convert to fraction form
    372,133.40/558,200.10 = 185,509.40/x
  3. Step 3: Cross multiply
    372,133.40x = 558,200.10 × 185,509.40
  4. Step 4: Simplify right side
    372,133.40x = 103,551,365,630.94
  5. Step 5: Solve for x
    x = 103,551,365,630.94/372,133.40
  6. Step 6: Final answer
    x = 278,264.10

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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.