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Finding the Fourth Proportional to 107,688.94, 161,533.45 and 48,455.41

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Solution

The fourth proportional to 107,688.94, 161,533.45 and 48,455.41 is: 72,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,688.94 : 161,533.45 = 48,455.41 : x
  2. Step 2: Convert to fraction form
    107,688.94/161,533.45 = 48,455.41/x
  3. Step 3: Cross multiply
    107,688.94x = 161,533.45 × 48,455.41
  4. Step 4: Simplify right side
    107,688.94x = 7,827,169,538.39
  5. Step 5: Solve for x
    x = 7,827,169,538.39/107,688.94
  6. Step 6: Final answer
    x = 72,683.13

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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.