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Finding the Fourth Proportional to 89,574.50, 123,598.70 and 51,326.70

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Solution

The fourth proportional to 89,574.50, 123,598.70 and 51,326.70 is: 70,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,574.50 : 123,598.70 = 51,326.70 : x
  2. Step 2: Convert to fraction form
    89,574.50/123,598.70 = 51,326.70/x
  3. Step 3: Cross multiply
    89,574.50x = 123,598.70 × 51,326.70
  4. Step 4: Simplify right side
    89,574.50x = 6,343,913,523.61
  5. Step 5: Solve for x
    x = 6,343,913,523.61/89,574.50
  6. Step 6: Final answer
    x = 70,822.76

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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.