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Finding the Fourth Proportional to 94,216.61, 129,960.61 and 61,954.94

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Solution

The fourth proportional to 94,216.61, 129,960.61 and 61,954.94 is: 85,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,216.61 : 129,960.61 = 61,954.94 : x
  2. Step 2: Convert to fraction form
    94,216.61/129,960.61 = 61,954.94/x
  3. Step 3: Cross multiply
    94,216.61x = 129,960.61 × 61,954.94
  4. Step 4: Simplify right side
    94,216.61x = 8,051,700,990.22
  5. Step 5: Solve for x
    x = 8,051,700,990.22/94,216.61
  6. Step 6: Final answer
    x = 85,459.47

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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.