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Finding the Fourth Proportional to 90,737.69, 135,988.27 and 46,327.01

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Solution

The fourth proportional to 90,737.69, 135,988.27 and 46,327.01 is: 69,430.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,737.69 : 135,988.27 = 46,327.01 : x
  2. Step 2: Convert to fraction form
    90,737.69/135,988.27 = 46,327.01/x
  3. Step 3: Cross multiply
    90,737.69x = 135,988.27 × 46,327.01
  4. Step 4: Simplify right side
    90,737.69x = 6,299,929,148.41
  5. Step 5: Solve for x
    x = 6,299,929,148.41/90,737.69
  6. Step 6: Final answer
    x = 69,430.13

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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.