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Finding the Fourth Proportional to 171,747.60, 257,621.40 and 146,378.40

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Solution

The fourth proportional to 171,747.60, 257,621.40 and 146,378.40 is: 219,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,747.60 : 257,621.40 = 146,378.40 : x
  2. Step 2: Convert to fraction form
    171,747.60/257,621.40 = 146,378.40/x
  3. Step 3: Cross multiply
    171,747.60x = 257,621.40 × 146,378.40
  4. Step 4: Simplify right side
    171,747.60x = 37,710,208,337.76
  5. Step 5: Solve for x
    x = 37,710,208,337.76/171,747.60
  6. Step 6: Final answer
    x = 219,567.60

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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.