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Finding the Fourth Proportional to 108,887.68, 150,260.16 and 61,140.16

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Solution

The fourth proportional to 108,887.68, 150,260.16 and 61,140.16 is: 84,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,887.68 : 150,260.16 = 61,140.16 : x
  2. Step 2: Convert to fraction form
    108,887.68/150,260.16 = 61,140.16/x
  3. Step 3: Cross multiply
    108,887.68x = 150,260.16 × 61,140.16
  4. Step 4: Simplify right side
    108,887.68x = 9,186,930,224.03
  5. Step 5: Solve for x
    x = 9,186,930,224.03/108,887.68
  6. Step 6: Final answer
    x = 84,370.70

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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.