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Finding the Fourth Proportional to 118,844.30, 164,009.58 and 67,865.30

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Solution

The fourth proportional to 118,844.30, 164,009.58 and 67,865.30 is: 93,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,844.30 : 164,009.58 = 67,865.30 : x
  2. Step 2: Convert to fraction form
    118,844.30/164,009.58 = 67,865.30/x
  3. Step 3: Cross multiply
    118,844.30x = 164,009.58 × 67,865.30
  4. Step 4: Simplify right side
    118,844.30x = 11,130,559,349.57
  5. Step 5: Solve for x
    x = 11,130,559,349.57/118,844.30
  6. Step 6: Final answer
    x = 93,656.65

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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.