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Finding the Fourth Proportional to 292,015.40, 437,720.70 and 158,613.80

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Solution

The fourth proportional to 292,015.40, 437,720.70 and 158,613.80 is: 237,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,015.40 : 437,720.70 = 158,613.80 : x
  2. Step 2: Convert to fraction form
    292,015.40/437,720.70 = 158,613.80/x
  3. Step 3: Cross multiply
    292,015.40x = 437,720.70 × 158,613.80
  4. Step 4: Simplify right side
    292,015.40x = 69,428,543,565.66
  5. Step 5: Solve for x
    x = 69,428,543,565.66/292,015.40
  6. Step 6: Final answer
    x = 237,756.45

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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.