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Finding the Fourth Proportional to 194,526.90, 291,790.47 and 61,420.74

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Solution

The fourth proportional to 194,526.90, 291,790.47 and 61,420.74 is: 92,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,526.90 : 291,790.47 = 61,420.74 : x
  2. Step 2: Convert to fraction form
    194,526.90/291,790.47 = 61,420.74/x
  3. Step 3: Cross multiply
    194,526.90x = 291,790.47 × 61,420.74
  4. Step 4: Simplify right side
    194,526.90x = 17,921,986,592.35
  5. Step 5: Solve for x
    x = 17,921,986,592.35/194,526.90
  6. Step 6: Final answer
    x = 92,131.15

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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.