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Finding the Fourth Proportional to 247,808.58, 341,969.19 and 145,840.05

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Solution

The fourth proportional to 247,808.58, 341,969.19 and 145,840.05 is: 201,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,808.58 : 341,969.19 = 145,840.05 : x
  2. Step 2: Convert to fraction form
    247,808.58/341,969.19 = 145,840.05/x
  3. Step 3: Cross multiply
    247,808.58x = 341,969.19 × 145,840.05
  4. Step 4: Simplify right side
    247,808.58x = 49,872,803,768.06
  5. Step 5: Solve for x
    x = 49,872,803,768.06/247,808.58
  6. Step 6: Final answer
    x = 201,255.36

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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.