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Finding the Fourth Proportional to 134,482.68, 185,578.92 and 74,051.28

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Solution

The fourth proportional to 134,482.68, 185,578.92 and 74,051.28 is: 102,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,482.68 : 185,578.92 = 74,051.28 : x
  2. Step 2: Convert to fraction form
    134,482.68/185,578.92 = 74,051.28/x
  3. Step 3: Cross multiply
    134,482.68x = 185,578.92 × 74,051.28
  4. Step 4: Simplify right side
    134,482.68x = 13,742,356,567.02
  5. Step 5: Solve for x
    x = 13,742,356,567.02/134,482.68
  6. Step 6: Final answer
    x = 102,186.81

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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.