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Finding the Fourth Proportional to 107,230.86, 147,881.76 and 66,948.36

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Solution

The fourth proportional to 107,230.86, 147,881.76 and 66,948.36 is: 92,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,230.86 : 147,881.76 = 66,948.36 : x
  2. Step 2: Convert to fraction form
    107,230.86/147,881.76 = 66,948.36/x
  3. Step 3: Cross multiply
    107,230.86x = 147,881.76 × 66,948.36
  4. Step 4: Simplify right side
    107,230.86x = 9,900,441,305.91
  5. Step 5: Solve for x
    x = 9,900,441,305.91/107,230.86
  6. Step 6: Final answer
    x = 92,328.28

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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.