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Finding the Fourth Proportional to 220,038.53, 303,654.15 and 124,563.69

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Solution

The fourth proportional to 220,038.53, 303,654.15 and 124,563.69 is: 171,898.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,038.53 : 303,654.15 = 124,563.69 : x
  2. Step 2: Convert to fraction form
    220,038.53/303,654.15 = 124,563.69/x
  3. Step 3: Cross multiply
    220,038.53x = 303,654.15 × 124,563.69
  4. Step 4: Simplify right side
    220,038.53x = 37,824,281,407.81
  5. Step 5: Solve for x
    x = 37,824,281,407.81/220,038.53
  6. Step 6: Final answer
    x = 171,898.45

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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.