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Finding the Fourth Proportional to 257,174.61, 354,870.63 and 148,277.75

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Solution

The fourth proportional to 257,174.61, 354,870.63 and 148,277.75 is: 204,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,174.61 : 354,870.63 = 148,277.75 : x
  2. Step 2: Convert to fraction form
    257,174.61/354,870.63 = 148,277.75/x
  3. Step 3: Cross multiply
    257,174.61x = 354,870.63 × 148,277.75
  4. Step 4: Simplify right side
    257,174.61x = 52,619,416,783.13
  5. Step 5: Solve for x
    x = 52,619,416,783.13/257,174.61
  6. Step 6: Final answer
    x = 204,605.80

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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.