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Finding the Fourth Proportional to 176,117.76, 243,136.80 and 135,743.04

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Solution

The fourth proportional to 176,117.76, 243,136.80 and 135,743.04 is: 187,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,117.76 : 243,136.80 = 135,743.04 : x
  2. Step 2: Convert to fraction form
    176,117.76/243,136.80 = 135,743.04/x
  3. Step 3: Cross multiply
    176,117.76x = 243,136.80 × 135,743.04
  4. Step 4: Simplify right side
    176,117.76x = 33,004,128,367.87
  5. Step 5: Solve for x
    x = 33,004,128,367.87/176,117.76
  6. Step 6: Final answer
    x = 187,398.07

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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.