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Finding the Fourth Proportional to 118,239.51, 163,156.17 and 67,258.71

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Solution

The fourth proportional to 118,239.51, 163,156.17 and 67,258.71 is: 92,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,239.51 : 163,156.17 = 67,258.71 : x
  2. Step 2: Convert to fraction form
    118,239.51/163,156.17 = 67,258.71/x
  3. Step 3: Cross multiply
    118,239.51x = 163,156.17 × 67,258.71
  4. Step 4: Simplify right side
    118,239.51x = 10,973,673,522.74
  5. Step 5: Solve for x
    x = 10,973,673,522.74/118,239.51
  6. Step 6: Final answer
    x = 92,808.85

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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.