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Finding the Fourth Proportional to 117,655.56, 162,368.58 and 69,248.71

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Solution

The fourth proportional to 117,655.56, 162,368.58 and 69,248.71 is: 95,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,655.56 : 162,368.58 = 69,248.71 : x
  2. Step 2: Convert to fraction form
    117,655.56/162,368.58 = 69,248.71/x
  3. Step 3: Cross multiply
    117,655.56x = 162,368.58 × 69,248.71
  4. Step 4: Simplify right side
    117,655.56x = 11,243,814,709.53
  5. Step 5: Solve for x
    x = 11,243,814,709.53/117,655.56
  6. Step 6: Final answer
    x = 95,565.52

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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.