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Finding the Fourth Proportional to 108,594.68, 149,860.70 and 66,153.21

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Solution

The fourth proportional to 108,594.68, 149,860.70 and 66,153.21 is: 91,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,594.68 : 149,860.70 = 66,153.21 : x
  2. Step 2: Convert to fraction form
    108,594.68/149,860.70 = 66,153.21/x
  3. Step 3: Cross multiply
    108,594.68x = 149,860.70 × 66,153.21
  4. Step 4: Simplify right side
    108,594.68x = 9,913,765,443.16
  5. Step 5: Solve for x
    x = 9,913,765,443.16/108,594.68
  6. Step 6: Final answer
    x = 91,291.45

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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.