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Finding the Fourth Proportional to 607,909.95, 911,865.65 and 158,630.49

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Solution

The fourth proportional to 607,909.95, 911,865.65 and 158,630.49 is: 237,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,909.95 : 911,865.65 = 158,630.49 : x
  2. Step 2: Convert to fraction form
    607,909.95/911,865.65 = 158,630.49/x
  3. Step 3: Cross multiply
    607,909.95x = 911,865.65 × 158,630.49
  4. Step 4: Simplify right side
    607,909.95x = 144,649,694,080.52
  5. Step 5: Solve for x
    x = 144,649,694,080.52/607,909.95
  6. Step 6: Final answer
    x = 237,945.92

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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.