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Finding the Fourth Proportional to 111,113.62, 153,332.94 and 63,382.30

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Solution

The fourth proportional to 111,113.62, 153,332.94 and 63,382.30 is: 87,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,113.62 : 153,332.94 = 63,382.30 : x
  2. Step 2: Convert to fraction form
    111,113.62/153,332.94 = 63,382.30/x
  3. Step 3: Cross multiply
    111,113.62x = 153,332.94 × 63,382.30
  4. Step 4: Simplify right side
    111,113.62x = 9,718,594,402.96
  5. Step 5: Solve for x
    x = 9,718,594,402.96/111,113.62
  6. Step 6: Final answer
    x = 87,465.37

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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.