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Finding the Fourth Proportional to 108,325.50, 149,487.93 and 60,578.40

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Solution

The fourth proportional to 108,325.50, 149,487.93 and 60,578.40 is: 83,597.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,325.50 : 149,487.93 = 60,578.40 : x
  2. Step 2: Convert to fraction form
    108,325.50/149,487.93 = 60,578.40/x
  3. Step 3: Cross multiply
    108,325.50x = 149,487.93 × 60,578.40
  4. Step 4: Simplify right side
    108,325.50x = 9,055,739,618.71
  5. Step 5: Solve for x
    x = 9,055,739,618.71/108,325.50
  6. Step 6: Final answer
    x = 83,597.49

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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.