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Finding the Fourth Proportional to 194,803.40, 292,205.10 and 155,437.40

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Solution

The fourth proportional to 194,803.40, 292,205.10 and 155,437.40 is: 233,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,803.40 : 292,205.10 = 155,437.40 : x
  2. Step 2: Convert to fraction form
    194,803.40/292,205.10 = 155,437.40/x
  3. Step 3: Cross multiply
    194,803.40x = 292,205.10 × 155,437.40
  4. Step 4: Simplify right side
    194,803.40x = 45,419,601,010.74
  5. Step 5: Solve for x
    x = 45,419,601,010.74/194,803.40
  6. Step 6: Final answer
    x = 233,156.10

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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.