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Finding the Fourth Proportional to 91,322.69, 126,024.88 and 51,036.43

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Solution

The fourth proportional to 91,322.69, 126,024.88 and 51,036.43 is: 70,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,322.69 : 126,024.88 = 51,036.43 : x
  2. Step 2: Convert to fraction form
    91,322.69/126,024.88 = 51,036.43/x
  3. Step 3: Cross multiply
    91,322.69x = 126,024.88 × 51,036.43
  4. Step 4: Simplify right side
    91,322.69x = 6,431,859,855.72
  5. Step 5: Solve for x
    x = 6,431,859,855.72/91,322.69
  6. Step 6: Final answer
    x = 70,430.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.