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Finding the Fourth Proportional to 54,681.56, 74,968.40 and 53,685.10

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Solution

The fourth proportional to 54,681.56, 74,968.40 and 53,685.10 is: 73,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,681.56 : 74,968.40 = 53,685.10 : x
  2. Step 2: Convert to fraction form
    54,681.56/74,968.40 = 53,685.10/x
  3. Step 3: Cross multiply
    54,681.56x = 74,968.40 × 53,685.10
  4. Step 4: Simplify right side
    54,681.56x = 4,024,686,050.84
  5. Step 5: Solve for x
    x = 4,024,686,050.84/54,681.56
  6. Step 6: Final answer
    x = 73,602.25

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.