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Finding the Fourth Proportional to 75,094.40, 103,673.40 and 56,079.02

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Solution

The fourth proportional to 75,094.40, 103,673.40 and 56,079.02 is: 77,421.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,094.40 : 103,673.40 = 56,079.02 : x
  2. Step 2: Convert to fraction form
    75,094.40/103,673.40 = 56,079.02/x
  3. Step 3: Cross multiply
    75,094.40x = 103,673.40 × 56,079.02
  4. Step 4: Simplify right side
    75,094.40x = 5,813,902,672.07
  5. Step 5: Solve for x
    x = 5,813,902,672.07/75,094.40
  6. Step 6: Final answer
    x = 77,421.25

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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.