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Finding the Fourth Proportional to 128,950.60, 193,430.76 and 35,463.64

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Solution

The fourth proportional to 128,950.60, 193,430.76 and 35,463.64 is: 53,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,950.60 : 193,430.76 = 35,463.64 : x
  2. Step 2: Convert to fraction form
    128,950.60/193,430.76 = 35,463.64/x
  3. Step 3: Cross multiply
    128,950.60x = 193,430.76 × 35,463.64
  4. Step 4: Simplify right side
    128,950.60x = 6,859,758,837.57
  5. Step 5: Solve for x
    x = 6,859,758,837.57/128,950.60
  6. Step 6: Final answer
    x = 53,196.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.