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Finding the Fourth Proportional to 111,363.35, 153,684.36 and 62,961.39

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Solution

The fourth proportional to 111,363.35, 153,684.36 and 62,961.39 is: 86,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,363.35 : 153,684.36 = 62,961.39 : x
  2. Step 2: Convert to fraction form
    111,363.35/153,684.36 = 62,961.39/x
  3. Step 3: Cross multiply
    111,363.35x = 153,684.36 × 62,961.39
  4. Step 4: Simplify right side
    111,363.35x = 9,676,180,926.86
  5. Step 5: Solve for x
    x = 9,676,180,926.86/111,363.35
  6. Step 6: Final answer
    x = 86,888.38

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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.