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Finding the Fourth Proportional to 108,668.61, 149,969.88 and 60,925.05

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Solution

The fourth proportional to 108,668.61, 149,969.88 and 60,925.05 is: 84,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,668.61 : 149,969.88 = 60,925.05 : x
  2. Step 2: Convert to fraction form
    108,668.61/149,969.88 = 60,925.05/x
  3. Step 3: Cross multiply
    108,668.61x = 149,969.88 × 60,925.05
  4. Step 4: Simplify right side
    108,668.61x = 9,136,922,437.49
  5. Step 5: Solve for x
    x = 9,136,922,437.49/108,668.61
  6. Step 6: Final answer
    x = 84,080.60

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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.