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Finding the Fourth Proportional to 118,837.40, 163,995.62 and 68,536.40

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Solution

The fourth proportional to 118,837.40, 163,995.62 and 68,536.40 is: 94,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837.40 : 163,995.62 = 68,536.40 : x
  2. Step 2: Convert to fraction form
    118,837.40/163,995.62 = 68,536.40/x
  3. Step 3: Cross multiply
    118,837.40x = 163,995.62 × 68,536.40
  4. Step 4: Simplify right side
    118,837.40x = 11,239,668,247.91
  5. Step 5: Solve for x
    x = 11,239,668,247.91/118,837.40
  6. Step 6: Final answer
    x = 94,580.23

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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.