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Finding the Fourth Proportional to 60,476.59, 90,730.23 and 42,742.15

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Solution

The fourth proportional to 60,476.59, 90,730.23 and 42,742.15 is: 64,124.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,476.59 : 90,730.23 = 42,742.15 : x
  2. Step 2: Convert to fraction form
    60,476.59/90,730.23 = 42,742.15/x
  3. Step 3: Cross multiply
    60,476.59x = 90,730.23 × 42,742.15
  4. Step 4: Simplify right side
    60,476.59x = 3,878,004,713.09
  5. Step 5: Solve for x
    x = 3,878,004,713.09/60,476.59
  6. Step 6: Final answer
    x = 64,124.06

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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.