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Finding the Fourth Proportional to 111,359.49, 153,674.21 and 62,960.63

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Solution

The fourth proportional to 111,359.49, 153,674.21 and 62,960.63 is: 86,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,359.49 : 153,674.21 = 62,960.63 : x
  2. Step 2: Convert to fraction form
    111,359.49/153,674.21 = 62,960.63/x
  3. Step 3: Cross multiply
    111,359.49x = 153,674.21 × 62,960.63
  4. Step 4: Simplify right side
    111,359.49x = 9,675,424,465.38
  5. Step 5: Solve for x
    x = 9,675,424,465.38/111,359.49
  6. Step 6: Final answer
    x = 86,884.60

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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.