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Finding the Fourth Proportional to 194,495.78, 291,532.74 and 99,595.76

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Solution

The fourth proportional to 194,495.78, 291,532.74 and 99,595.76 is: 149,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,495.78 : 291,532.74 = 99,595.76 : x
  2. Step 2: Convert to fraction form
    194,495.78/291,532.74 = 99,595.76/x
  3. Step 3: Cross multiply
    194,495.78x = 291,532.74 × 99,595.76
  4. Step 4: Simplify right side
    194,495.78x = 29,035,424,805.18
  5. Step 5: Solve for x
    x = 29,035,424,805.18/194,495.78
  6. Step 6: Final answer
    x = 149,285.63

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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.