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Finding the Fourth Proportional to 343,762.06, 515,657.08 and 163,754.96

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Solution

The fourth proportional to 343,762.06, 515,657.08 and 163,754.96 is: 245,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,762.06 : 515,657.08 = 163,754.96 : x
  2. Step 2: Convert to fraction form
    343,762.06/515,657.08 = 163,754.96/x
  3. Step 3: Cross multiply
    343,762.06x = 515,657.08 × 163,754.96
  4. Step 4: Simplify right side
    343,762.06x = 84,441,404,509.12
  5. Step 5: Solve for x
    x = 84,441,404,509.12/343,762.06
  6. Step 6: Final answer
    x = 245,639.10

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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.