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Finding the Fourth Proportional to 113,055.69, 169,581.78 and 38,228.40

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Solution

The fourth proportional to 113,055.69, 169,581.78 and 38,228.40 is: 57,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,055.69 : 169,581.78 = 38,228.40 : x
  2. Step 2: Convert to fraction form
    113,055.69/169,581.78 = 38,228.40/x
  3. Step 3: Cross multiply
    113,055.69x = 169,581.78 × 38,228.40
  4. Step 4: Simplify right side
    113,055.69x = 6,482,840,118.55
  5. Step 5: Solve for x
    x = 6,482,840,118.55/113,055.69
  6. Step 6: Final answer
    x = 57,342.01

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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.