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Finding the Fourth Proportional to 178,649.04, 246,489.48 and 106,978.32

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Solution

The fourth proportional to 178,649.04, 246,489.48 and 106,978.32 is: 147,602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,649.04 : 246,489.48 = 106,978.32 : x
  2. Step 2: Convert to fraction form
    178,649.04/246,489.48 = 106,978.32/x
  3. Step 3: Cross multiply
    178,649.04x = 246,489.48 × 106,978.32
  4. Step 4: Simplify right side
    178,649.04x = 26,369,030,468.07
  5. Step 5: Solve for x
    x = 26,369,030,468.07/178,649.04
  6. Step 6: Final answer
    x = 147,602.42

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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.