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Finding the Fourth Proportional to 261,135.66, 360,244.35 and 189,358.32

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Solution

The fourth proportional to 261,135.66, 360,244.35 and 189,358.32 is: 261,225.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,135.66 : 360,244.35 = 189,358.32 : x
  2. Step 2: Convert to fraction form
    261,135.66/360,244.35 = 189,358.32/x
  3. Step 3: Cross multiply
    261,135.66x = 360,244.35 × 189,358.32
  4. Step 4: Simplify right side
    261,135.66x = 68,215,264,905.49
  5. Step 5: Solve for x
    x = 68,215,264,905.49/261,135.66
  6. Step 6: Final answer
    x = 261,225.39

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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.