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Finding the Fourth Proportional to 105,313.60, 158,032.80 and 38,800.48

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Solution

The fourth proportional to 105,313.60, 158,032.80 and 38,800.48 is: 58,223.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,313.60 : 158,032.80 = 38,800.48 : x
  2. Step 2: Convert to fraction form
    105,313.60/158,032.80 = 38,800.48/x
  3. Step 3: Cross multiply
    105,313.60x = 158,032.80 × 38,800.48
  4. Step 4: Simplify right side
    105,313.60x = 6,131,748,495.74
  5. Step 5: Solve for x
    x = 6,131,748,495.74/105,313.60
  6. Step 6: Final answer
    x = 58,223.71

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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.