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Finding the Fourth Proportional to 118,039.30, 162,888.14 and 67,045.30

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Solution

The fourth proportional to 118,039.30, 162,888.14 and 67,045.30 is: 92,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,039.30 : 162,888.14 = 67,045.30 : x
  2. Step 2: Convert to fraction form
    118,039.30/162,888.14 = 67,045.30/x
  3. Step 3: Cross multiply
    118,039.30x = 162,888.14 × 67,045.30
  4. Step 4: Simplify right side
    118,039.30x = 10,920,884,212.74
  5. Step 5: Solve for x
    x = 10,920,884,212.74/118,039.30
  6. Step 6: Final answer
    x = 92,519.05

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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.