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Finding the Fourth Proportional to 225,015.76, 310,532.52 and 124,420.24

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Solution

The fourth proportional to 225,015.76, 310,532.52 and 124,420.24 is: 171,705.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,015.76 : 310,532.52 = 124,420.24 : x
  2. Step 2: Convert to fraction form
    225,015.76/310,532.52 = 124,420.24/x
  3. Step 3: Cross multiply
    225,015.76x = 310,532.52 × 124,420.24
  4. Step 4: Simplify right side
    225,015.76x = 38,636,530,666.20
  5. Step 5: Solve for x
    x = 38,636,530,666.20/225,015.76
  6. Step 6: Final answer
    x = 171,705.89

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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.