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Finding the Fourth Proportional to 117,362.90, 176,096.19 and 47,378.90

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Solution

The fourth proportional to 117,362.90, 176,096.19 and 47,378.90 is: 71,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,362.90 : 176,096.19 = 47,378.90 : x
  2. Step 2: Convert to fraction form
    117,362.90/176,096.19 = 47,378.90/x
  3. Step 3: Cross multiply
    117,362.90x = 176,096.19 × 47,378.90
  4. Step 4: Simplify right side
    117,362.90x = 8,343,243,776.39
  5. Step 5: Solve for x
    x = 8,343,243,776.39/117,362.90
  6. Step 6: Final answer
    x = 71,089.28

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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.