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Finding the Fourth Proportional to 233,285.40, 349,928.10 and 115,187.40

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Solution

The fourth proportional to 233,285.40, 349,928.10 and 115,187.40 is: 172,781.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,285.40 : 349,928.10 = 115,187.40 : x
  2. Step 2: Convert to fraction form
    233,285.40/349,928.10 = 115,187.40/x
  3. Step 3: Cross multiply
    233,285.40x = 349,928.10 × 115,187.40
  4. Step 4: Simplify right side
    233,285.40x = 40,307,308,025.94
  5. Step 5: Solve for x
    x = 40,307,308,025.94/233,285.40
  6. Step 6: Final answer
    x = 172,781.10

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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.