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Finding the Fourth Proportional to 108,838.32, 150,188.64 and 61,082.46

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Solution

The fourth proportional to 108,838.32, 150,188.64 and 61,082.46 is: 84,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,838.32 : 150,188.64 = 61,082.46 : x
  2. Step 2: Convert to fraction form
    108,838.32/150,188.64 = 61,082.46/x
  3. Step 3: Cross multiply
    108,838.32x = 150,188.64 × 61,082.46
  4. Step 4: Simplify right side
    108,838.32x = 9,173,891,595.25
  5. Step 5: Solve for x
    x = 9,173,891,595.25/108,838.32
  6. Step 6: Final answer
    x = 84,289.17

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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.