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Finding the Fourth Proportional to 117,349.34, 161,882.10 and 74,256.32

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Solution

The fourth proportional to 117,349.34, 161,882.10 and 74,256.32 is: 102,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,349.34 : 161,882.10 = 74,256.32 : x
  2. Step 2: Convert to fraction form
    117,349.34/161,882.10 = 74,256.32/x
  3. Step 3: Cross multiply
    117,349.34x = 161,882.10 × 74,256.32
  4. Step 4: Simplify right side
    117,349.34x = 12,020,769,424.58
  5. Step 5: Solve for x
    x = 12,020,769,424.58/117,349.34
  6. Step 6: Final answer
    x = 102,435.77

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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.