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Finding the Fourth Proportional to 173,624.32, 239,619.42 and 105,646.24

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Solution

The fourth proportional to 173,624.32, 239,619.42 and 105,646.24 is: 145,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,624.32 : 239,619.42 = 105,646.24 : x
  2. Step 2: Convert to fraction form
    173,624.32/239,619.42 = 105,646.24/x
  3. Step 3: Cross multiply
    173,624.32x = 239,619.42 × 105,646.24
  4. Step 4: Simplify right side
    173,624.32x = 25,314,890,753.98
  5. Step 5: Solve for x
    x = 25,314,890,753.98/173,624.32
  6. Step 6: Final answer
    x = 145,802.68

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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.