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Finding the Fourth Proportional to 201,081.60, 277,423.16 and 128,526.93

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Solution

The fourth proportional to 201,081.60, 277,423.16 and 128,526.93 is: 177,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,081.60 : 277,423.16 = 128,526.93 : x
  2. Step 2: Convert to fraction form
    201,081.60/277,423.16 = 128,526.93/x
  3. Step 3: Cross multiply
    201,081.60x = 277,423.16 × 128,526.93
  4. Step 4: Simplify right side
    201,081.60x = 35,656,348,080.57
  5. Step 5: Solve for x
    x = 35,656,348,080.57/201,081.60
  6. Step 6: Final answer
    x = 177,322.78

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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.