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Finding the Fourth Proportional to 61,403.40, 92,105.10 and 45,851.40

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Solution

The fourth proportional to 61,403.40, 92,105.10 and 45,851.40 is: 68,777.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,403.40 : 92,105.10 = 45,851.40 : x
  2. Step 2: Convert to fraction form
    61,403.40/92,105.10 = 45,851.40/x
  3. Step 3: Cross multiply
    61,403.40x = 92,105.10 × 45,851.40
  4. Step 4: Simplify right side
    61,403.40x = 4,223,147,782.14
  5. Step 5: Solve for x
    x = 4,223,147,782.14/61,403.40
  6. Step 6: Final answer
    x = 68,777.10

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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.