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Finding the Fourth Proportional to 69,683.68, 96,178.80 and 42,848.96

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Solution

The fourth proportional to 69,683.68, 96,178.80 and 42,848.96 is: 59,140.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,683.68 : 96,178.80 = 42,848.96 : x
  2. Step 2: Convert to fraction form
    69,683.68/96,178.80 = 42,848.96/x
  3. Step 3: Cross multiply
    69,683.68x = 96,178.80 × 42,848.96
  4. Step 4: Simplify right side
    69,683.68x = 4,121,161,554.05
  5. Step 5: Solve for x
    x = 4,121,161,554.05/69,683.68
  6. Step 6: Final answer
    x = 59,140.99

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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.