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Finding the Fourth Proportional to 292,953.20, 439,232.52 and 105,940.40

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Solution

The fourth proportional to 292,953.20, 439,232.52 and 105,940.40 is: 158,839.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,953.20 : 439,232.52 = 105,940.40 : x
  2. Step 2: Convert to fraction form
    292,953.20/439,232.52 = 105,940.40/x
  3. Step 3: Cross multiply
    292,953.20x = 439,232.52 × 105,940.40
  4. Step 4: Simplify right side
    292,953.20x = 46,532,468,861.81
  5. Step 5: Solve for x
    x = 46,532,468,861.81/292,953.20
  6. Step 6: Final answer
    x = 158,839.26

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1.5x scale

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.