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Finding the Fourth Proportional to 113,388.60, 170,098.53 and 38,488.63

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Solution

The fourth proportional to 113,388.60, 170,098.53 and 38,488.63 is: 57,738.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,388.60 : 170,098.53 = 38,488.63 : x
  2. Step 2: Convert to fraction form
    113,388.60/170,098.53 = 38,488.63/x
  3. Step 3: Cross multiply
    113,388.60x = 170,098.53 × 38,488.63
  4. Step 4: Simplify right side
    113,388.60x = 6,546,859,384.71
  5. Step 5: Solve for x
    x = 6,546,859,384.71/113,388.60
  6. Step 6: Final answer
    x = 57,738.25

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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.