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Finding the Fourth Proportional to 114,486.39, 158,000.95 and 63,515.54

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Solution

The fourth proportional to 114,486.39, 158,000.95 and 63,515.54 is: 87,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,486.39 : 158,000.95 = 63,515.54 : x
  2. Step 2: Convert to fraction form
    114,486.39/158,000.95 = 63,515.54/x
  3. Step 3: Cross multiply
    114,486.39x = 158,000.95 × 63,515.54
  4. Step 4: Simplify right side
    114,486.39x = 10,035,516,312.80
  5. Step 5: Solve for x
    x = 10,035,516,312.80/114,486.39
  6. Step 6: Final answer
    x = 87,656.85

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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.