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Finding the Fourth Proportional to 60,672.40, 91,008.60 and 46,659.40

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Solution

The fourth proportional to 60,672.40, 91,008.60 and 46,659.40 is: 69,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,672.40 : 91,008.60 = 46,659.40 : x
  2. Step 2: Convert to fraction form
    60,672.40/91,008.60 = 46,659.40/x
  3. Step 3: Cross multiply
    60,672.40x = 91,008.60 × 46,659.40
  4. Step 4: Simplify right side
    60,672.40x = 4,246,406,670.84
  5. Step 5: Solve for x
    x = 4,246,406,670.84/60,672.40
  6. Step 6: Final answer
    x = 69,989.10

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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.